Po446 code gmc

When the canister would not vent after the EVAP test, GMs and older Fords would set this code, and in those circumstances, mechanical clogging was considerably more likely to be the cause.. It’s worth noting that code P0446 is more common on older automobiles, especially those made by domestic manufacturers such as GM.. …

when I had it scanned the code PO446 came up "Evaporative Emmission Control System Vent Control Circuit" I was told by a friend it is a typical gm problem and is usually the vent valve and when i priced this it was $275. ... GMC Canyon. The Original (Sold June 2016) 2007 4x4 Z71 3.7 I-5 Hunter Brush Guard Access Lorado Rollup Tonneau Window In ...Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition. There is a bulletin for the following models: 1999-2007 Chevrolet Silverado (Classic) Models. 2007-2008 Chevrolet Silverado Models. Chevrolet Factory Service Bulletin OBDII Code P0446. User Submitted Video.One of the most common trouble codes is the P0446 code. This trouble code references a number that is given to you when you plug your vehicle into a OBDII scanner. P0446 Indicates that there is a fault in the evaporative emission control system. It often appears with other codes, such as P0420, P0441, or P0440.The P0440 code means that the control module has detected a leak in the Evaporative Emission (EVAP). A loose fuel tank filler cap is the most common cause that triggers the P0440 code. User Submitted Video. ⚠ Check if your GMC have Safety Recalls.P0496 code in the GMC Terrain will often be accompanied by an erratic idle. The engine will rev up and down trying to find the proper idle speed. This will often happen right after you buy gas. It also might not start at all at the gas station. If you’re old enough to have driven a carbureted vehicle the old stomp the gas and crank the engine ...The ECM driver closes this valve when grounded and will set code P0446 if there is an open or short to ground or battery voltage or it is not possible to form a vacuum seal. How Do I Fix Trouble Code P0446? Resolving the …what is engine code po446 on a 2004 gmc yukan denali - GMC 2003 Yukon Denali question. Search Fixya. Browse Categories Answer Questions . 2003 GMC Yukon Denali; GMC Yukon Denali Car and Truck ... 2001 camry code po440,po441,po446 what kind of problem and how can be solved sam. Posted on Jun 30, 2009.Code P0446 in a GMC Sierra refers to a problem with the evaporative emission control system. This code indicates that there is a malfunction in the system, specifically with the vent control circuit. The evaporative emission control system helps reduce harmful fuel vapors from escaping into the atmosphere.

Specifically, P0452 code means that the pressure in the ECM is unusually low. This code is classified as an emission system malfunction. The ECM relies on the fuel tank pressure sensor to show fluctuations in the internal pressure of the tanks. The location of this pressure detector varies depending on the model of your car.Ford Code P0446 is an OBD-II diagnostic trouble code that indicates a problem with the vehicle's evaporative emission control system. Specifically, it refers to a malfunction in the evaporative emission control system vent control circuit. This code typically means there is a leak in the fuel tank vapor system or a faulty vent valve.Making light repairs to shut off those annoying lights on the dash in my work truckLike all OBD-II trouble codes, P0451 has the same meaning for all vehicles. It means that your GMC Sierra's EVAP system has a pressure sensor that is malfunctioning in some way. P0451 is usually caused by either a bad EVAP pressure sensor, a clogged fuel tank relief valve, EVAP lines, EVAP wiring, or a bad.Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition. There is a bulletin for the following models: 1999-2007 Chevrolet Silverado (Classic) Models. 2007-2008 Chevrolet Silverado Models. Chevrolet Factory Service Bulletin OBDII Code P0446. User Submitted Video.

If your GMC Acadia has the P0442 OBD II code, you should first check the fuel cap. If it’s missing or broken, replace it. If the fuel cap seems ok, you must check the EVAP system for a leak. One of the most common issues that happens with the GMC Acadia is the P0442 trouble code. This code appears when connecting the vehicle to an …thank you for watching!!!!!If this video was helpful to you and if you would like to place a donation, here is my Venmo and PayPal information. Or I would re...Apr 8, 2021 ... In this video I have a look at a 2003 Chevrolet Suburban that came in with the SES light on with a code for the EVAP system. P0446 was the ...Hey everyone, I have a 2003 gmc sierra 1500 4.8 2wd that is throwing a p0446 code: Subject: DTC P0446 (Restricted/Blocked EVAP Vent Path) Set, Service Engine Soon (SES) Lamp Illuminated (Replace Hose/Evaporative Emission (EVAP) Canister Vent Asm) #02-06-04-037A ... Chevy Silverado and GMC Sierra Forum. 1.4M posts 184.1K members

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Dec 18, 2018 · Here are the most common problems that will throw the code: The most common causes of P0446 are: A Faulty or failed EVAP vent solenoid. Clogged or blocked EVAP charcoal canister. Damaged or corroded EVAP system wiring or connections. Failed EVAP pressure sensor. Malfunctioning EVAP purge solenoid. Bad fuel cap.P0446 is a diagnostic trouble code (DTC) associated with a vehicle's evaporative emissions control system. It signifies an issue in the vent control circuit in your Oldsmobile Aurora's EVAP system, which prevents fuel vapor from being released into the atmosphere. A prevalent issue with the Oldsmobile Aurora is the P0446 code.A prevalent issue with the Ford Escape is the P0446 code. This code corresponds to a specific number obtained when connecting your Escape to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Table of Contents Definition Symptoms Causes Diagnosis How to Fix P0446 Definition P0446 is a standard OBDII trouble code,The intake air temperature (IAT) is between 4-30°C (39-86°F). DTC P0446 runs once per cold start when the above conditions are met. Diagnostic test will abort after 16.6 minutes. The fuel tank vacuum is greater than -12 inches H2O vacuum for 5 seconds. The FTP is less than -2.5 inches H2O or more than +5 inches for 60 seconds after a cold start.

The P0446 fault code is related to the Evaporative Emission (EVAP) system in your automobile. It specifically tests for any restrictions or blockages in the EVAP vent path, which can cause excessive vacuum pressure to build up in the system. When this fault code is triggered, the Engine Control Module (ECM) commands the EVAP purge solenoid ...Do you have a GMC Sierra with a P0446 code and a faulty evap canister vent solenoid valve? Watch this video to learn how to diagnose and replace the valve yourself. You will also find useful tips ...thank you for watching!!!!!If this video was helpful to you and if you would like to place a donation, here is my Venmo and PayPal information. Or I would re...470 posts · Joined 2018. #2 ·Mar 10, 2020. Code criteria; P0446 indicates that there is an improper voltage drop in the EVAP Vent Valve circuit. This can be caused by either too little or too much electrical resistance.GMC Envoy P0446 OBDII Code Symptoms. Typically, the only symptom of P0446 will be the check engine light. The only other symptoms of P0446 in the GMC …470 posts · Joined 2018. #2 ·Mar 10, 2020. Code criteria; P0446 indicates that there is an improper voltage drop in the EVAP Vent Valve circuit. This can be caused by either too little or too much electrical resistance.Tenants can be sentenced to up to three years in jail. Cameroon is in the process of updating its 50-year-old penal code, and making some curious amendments. Tenants who are over t...What Does the P0454 Code Mean? Diagnostic trouble code (DTC) P0454 stands for "Evaporative Emission System Pressure Sensor/Switch Intermittent.". The EVAP System. A typical EVAP system consists of a charcoal canister, a purge valve/solenoid, a vent control valve/solenoid, an EVAP emission pressure sensor, as well as other metal tubes and rubber hoses.Hi i have a 2003 chevy silverado 5.3 it has a p0446 code the vent solenoid has already been replaced i put my scan tool on and check the data on the FTPS and its -1498 and when i remove the gas cap it only drops to -1496or7 and it has 4.4v. Hello, my name is***** and i will do my best to assist you.I am going over your story now and will reply ...

To diagnose the P0446 2016 GMC Sierra code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

A prevalent issue with the GMC Terrain is the P0446 code. This code corresponds to a specific number obtained when connecting your Terrain to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Table of Contents Definition Symptoms Causes Diagnosis How to Fix P0446 Definition P0446 is a standard OBDII trouble code,Hello all, I have a 2016 GMC Canyon alt displaying a p0451 code for evaporative emission system pressure sensor switch range performance. I made sure the gas cap was tightly closed and reset the code but it came once more. ... Check engine codes means evaporative emission system high purge flow. There are several areas, but this is what I did ...temp.xml. Bulletin No.: 15-06-04-002. Date: Apr-2015. Subject: Malfunction Indicator Lamp (MIL) Illuminated, Fuel Tank Hard to Fill, DTCs P0442, P0446, P0455 or P0449 Set. Models: 2011-2013 Chevrolet Silverado. 2014 Chevrolet Silverado 1500. 2014 Chevrolet Silverado 2500/3500.Code P0446 GMC stands for Evaporative Emission Vent System Performance. Read the article to know possible causes, symptoms, and descriptions. Skip to content. ... P0446 GMC – Evaporative Emission Vent System Performance . P0446: DIY Repairing Video Tutorial. https: ...I have a 2004 Avalanche, 49K mileage, code PO446, charcoal in line, recomended replace fuel/evap canister, vent valve & purge valve, blow out lines. ... evap emissions vent circuit low. If you take it to the dealer they want 300-400.00 to fix the problem. GM has a service bulletin on this condition and have the updated part for 180.00, thats ...I was hoping to get some guidance on this issue. I got the p0446 code, replaced the fuel tank pressure sensor. I am unsure of how to proceed to see if it cleared the codes; is it best to reset the codes or simply allow the vehicle to go through it's evap cycle (no sure how long this is, seems like 50 miles usually). Sorry if this a dumb question.P0446 2007 gmc yukon. Always Google any codes you get & read up. PO446-Evap System Vent Control Circuit Malfunction. If the Evap Vent Valve or it's control circuit are bad, then. you can't fill the fuel tank. Mar 04, 2013 •.Hi, P0446="EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL CIRCUIT" (Open or close malfunction in CCV - 2 trip detection logic). Quote. "MONITOR DESCRIPTION. The ECM tests the Evaporative Emissions (EVAP) system using the fuel tank pressure sensor, Canister Close Valve (CCV), and EVAP VSV. The ECM closes the EVAP system and creates negative ...OBDII P0446. Hi. This engine code is related to a malfunction in the electrical circuit for the vent valve/solenoid in the evaporative emission control system. Probable causes are; 1- Purge or vent solenoids defective. 2- Defective wiring or bad connections in the vent valve/solenoid circuit.

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P0467 Purge Flow Sensor Circuit Low Input. P0468 Purge Flow Sensor Circuit High Input. P0469 Purge Flow Sensor Circuit Intermittent. There are other codes which would indicate all sorts of other problems with the evaporative purge flow sensor. This would be a short to ground, a short to +, or an intermittent connection.I have an 07 sierra (Not Classic) with a 5.3L with around 68k miles. I am getting the P0446 code. I tried to blow out the vapor solenoid valve with air and after that I couldn't even fill my tank because it wouldnt vent at all. I replaced the solenoid valve and drove about 200 miles and the code came back. Cleared it and now I'm right around ...Unable to fill gas tank P0446 P0455. I recently ran into a Cel (check engine light ) p0446 evan vent solenoid issue and a tighten gas cap message. The tighten gas cap only appeared in the morning on way to work when it runs the emission monitors. Well I checked gas cap appeard tight, but replaced with ac delco anyways as truck has 57k.Diagnostic trouble code (DTC) P0151 stands for "O2 Sensor Circuit Low Voltage (Bank 2, Sensor 1). It means that the oxygen sensor's voltage has remained lower than factory specifications for a certain amount of time. P0151 code warns about a fault with the upstream oxygen sensor on Bank 2. The code P0151 is similar to P0136, P0137, and P0131.How to remove/install a fuel pressure sensor on GMC Canyon, extended cab, 2005.Installing this new fuel tank pressure sensor did fix the P0446 code, and the ...The P0440 code stands for "Evaporative Emission Control (EVAP) System Malfunction - Large Leak," which means the powertrain control module has detected a significant leak in the EVAP system. Some possible causes of the P0440 code include a missing, damaged, or incorrect fuel cap, a damaged fuel tank filler neck, and disconnected or ...What Does Code P0443 Mean? P0443 definition: Evaporative Emission Control System Purge Control Valve Circuit Malfunction; Issue Severity: LOW - Continued driving for a short period of time is okay. Repair Urgency: Get this fixed within the next month. Diagnosis: This trouble code severely impacts the drivability of your vehicle.The most common problems consist of increased engine stalling ...Let's have a look at this 2004 Chevy Truck that was dropped off at SMA from another shop that was having trouble diagnosing the classic P0446 "EVAP Vent Perf...Hello all, I have a 2016 GMC Canyon alt displaying a p0451 code for evaporative emission system pressure sensor switch range performance. I made sure the gas cap was tightly closed and reset the code but it came once more. I’m thinking from what I’ve seen online, it might be the pressure sensor on top of the gas tank. Could it be …Mar 15, 2019 · The FIXD wireless OBD2 scanner and free app for iPhone and Android translates your check engine light into plain English so you can rest easy. In this video,...I frequently get a CEL for code P0446---faulty evap canister solenoid. Well, I live in the southern Nevada desert where I am in lots of dust all the time! ... 2018 GMC Sierra Z71 Package Dual cat-back Borla ATAK exhaust 2 inch leveling kit 275/70/18 cooper discoverer atp2.P0446 GMC Diagnostic Trouble Code (DTC) Definition, Causes and Diagnosis. Home GMCP0446 GMC DTC P0446 Make: GMC Code: P0446 ... (ECT) is less than 35°C (95°F). The intake air temperature (IAT) is between 4-30°C (39-86°F). DTC P0446 runs once per cold start when the above conditions are met. Diagnostic test will abort after 16.6 minutes. ….

Quick regarding EVAP system (P0446) I have a 2008 silverado 4.8l. It is throwing a P0446 code, and after going through forums and fixes online, it seems like my best bet is to start with blowing out/replacing the evap vent valve. I have also read that someone had this same code on their avalanche and it ended up being a fuel pressure sensor.Conclusion. P0446 is a diagnostic trouble code (DTC) associated with a vehicle’s evaporative emissions control system. It signifies an issue in the vent control circuit in your Chevy Trailblazer’s EVAP system, which prevents fuel vapor from being released into the atmosphere. A prevalent issue with the Chevy Trailblazer is the P0446 code.Let's have a look at this 2004 Chevy Truck that was dropped off at SMA from another shop that was having trouble diagnosing the classic P0446 "EVAP Vent Perf...GMC Sierra P0496 Meaning. P0496 is a universal OBDII trouble code. This means that regardless of which make or model of vehicle, the code will mean the same thing. The code technically stands for: Evaporative Emission System High Purge Flow. The EVAP system captures all fuel vapor from the fuel tank and sends them to the engines intake in order ...GM Mechanic: Gary. if that code resets there is a bulletin to correct this type of code and issue with these 2014 trucks. # 15-06-04-002: Malfunction Indicator Lamp (MIL) Illuminated, Fuel Tank Hard to Fill, DTCs P0442, P0446, P0455 or P0449 Set - (Apr 9, 2015) Subject: Malfunction Indicator Lamp (MIL) Illuminated, Fuel Tank Hard to Fill, DTCs ...Always Google any codes you get & read up PO446-Evap System Vent Control Circuit Malfunction If the Evap Vent Valve or it's control circuit are bad, then ... Code r2r2 on gmc 2003 Yukon The Why code is on tge 2003 Yukon. 2003 GMC Yukon; Open Questions: 0 answers. I have a 2003 yukon Brake lights are not working. I have replaced the brake switch.If the ECM attempts to activate the vent control solenoid but detects incorrect voltage feedback or incorrect vacuum or pressure feedback, it will lock out EVAP function, set a diagnostic trouble code (DTC), and illuminate the malfunction indicator lamp (MIL). DTC P0446 is defined as “Evaporative Emission (EVAP) Vent Control Circuit ...Nov 14, 2016 · I have an 07 sierra (Not Classic) with a 5.3L with around 68k miles. I am getting the P0446 code. I tried to blow out the vapor solenoid valve with air and after that I couldn't even fill my tank because it wouldnt vent at all. I replaced the solenoid valve and drove about 200 miles and the code came back. Cleared it and now I'm right around ... Po446 code gmc, GM Mechanic: Gary. if that code resets there is a bulletin to correct this type of code and issue with these 2014 trucks. # 15-06-04-002: Malfunction Indicator Lamp (MIL) Illuminated, Fuel Tank Hard to Fill, DTCs P0442, P0446, P0455 or P0449 Set - (Apr 9, 2015) Subject: Malfunction Indicator Lamp (MIL) Illuminated, Fuel Tank Hard to Fill, DTCs ..., Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition. There is a bulletin for the following models: 1999-2007 GMC Sierra (Classic) Models. 2007-2008 GMC Sierra Models. GMC Factory Service Bulletin OBDII Code P0446. User Submitted Video., Are you in the market for a new vehicle and considering a GMC? Look no further than Hendrick GMC in Cary, NC. Known for their exceptional quality and innovative features, GMC vehic..., Steps to fix code P0446 & P0455. Check the Gas Cap. Inspect the condition of the gas cap. Check the seal and make sure it isn't broken or dry-rotted. Test the gas cap and make sure it's tightening securely. Check the Purge Valve. The purge valve is also a likely cause of codes P0446 and P0455., Do you have a GMC Sierra with a P0446 code and a faulty evap canister vent solenoid valve? Watch this video to learn how to diagnose and replace the valve yourself. You will also find useful tips ..., The codes P0442, P0446 and P0455 are all EVAP System codes and shouldn't affect the operation of the truck. If you are in snow country the repairs can wait. The P0300 is for engine misfire and is probably related to the EVAP System issues. If the engine has an occasional misfire it will not need immediate attention, but if it constantly ..., 1986 Answers. SOURCE: check engine code "P0446 Evap Control System Vent Control Circ". Unfortunately, this code has nothing to do with the gas cap.... A code P0446 could mean one or more of the following has happened: Faulty vent valve. Open, short or excessive resistance on Vent valve control circuit., To diagnose the P0446 Toyota code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour., Conclusion. P0446 is a diagnostic trouble code (DTC) associated with a vehicle’s evaporative emissions control system. It signifies an issue in the vent control circuit in your Chevy Express’s EVAP system, which prevents fuel vapor from being released into the atmosphere. A prevalent issue with the Chevy Express is the P0446 code., 4309 posts · Joined 2013. #6 · Nov 2, 2016. P0446= evap emission control system vent control circuit malfunction. Like. This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread., GMC Envoy P0446 OBDII Code Symptoms. Typically, the only symptom of P0446 will be the check engine light. The only other symptoms of P0446 in the GMC …, Jan 1, 2018 ... Check engine light DTC p0446. Evaporative emission vent system performance p0446 code ... Causes and Fixes Chevy/GMC P0446 Code: Evaporative ..., , The revolution we've all been waiting for hasn't yet arrived. Despite the good intentions behind the movement to get people to code, both the basic premise and approach are flawed...., hawkeyez. I have an 05 that was getting P0446. Cleaned the filter on the valve and it helped for a while. Code came back, so I got the updated part with the remote filter and installed that along with a new charcoal canister. (165000 miles on the truck). Now its throwing the code again, but only last tank was slow to fill., dreaded p0446 dtc. on my 2007 silverado gmt900 lt z71, ex cab, vin code j, i've been fighting the dreaded p0446. and with winter coming and having moved to an emissions testing area, this is something that i need to solve soonish. so i FINALLY updated the software on my cen-tech 60794 which allowed me to perform onboard monitor …, Blair J. 50 posts · Joined 2020. #2 · Feb 28, 2021 (Edited) Two of the most common and successful fixes for the P0446 code is to replace the vent valve solenoid, as you have already done, or replace a faulty fuel tank pressure sensor. For me the cause of the P0446 code was a faulty fuel tank pressure sensor. When I replaced it, finally the ..., Conclusion. P0446 is a diagnostic trouble code (DTC) associated with a vehicle’s evaporative emissions control system. It signifies an issue in the vent control circuit in your Chevy Tahoe’s EVAP system, which prevents fuel vapor from being released into the atmosphere. A prevalent issue with the Chevy Tahoe is the P0446 code., garye5007 Discussion starter. 7 posts · Joined 2013. #1 · Feb 26, 2018. Hi, I have a 2013 silverado 1500 and it's throwing a p0446 code and I smell gas outside the truck... changed evap solenoid from canister back so I suspect either a plugged canister or a fuel tank pressure sensor., This trouble code is a reference number that is given to you when you plug your Acadia into a OBDII scanner. P0449 deals with the evaporative emissions control system. It often appears with, or is related other codes, such as P0420, P0446, and very often P0440. P0449 is normally not an immediate threat to the drive-ability of your Acadia., How to fix the P0046 code TURBO BOOST CONTROL SOLENOID DURAMAX LLY LBZ LMM GMC Sierra Chevy SilveradoLink to Turbo Boost Control Solenoid in the video:https:..., In this video I'll be showing you how to replace and repair your Flex Fuel Sensor and how to get rid of the trouble codes. This pertains to 2000-2005.#DIY #H..., I have recently bought a 2001 gmc 1500 p/u dtc reads po446 my code book says computer output curcuit problem. I took the truck to a shop in town (recomended) they said it was probably a leak in the evap system. My book says there are different codes for leaks, should I be looking for leaks or go strait to electrical, I'm getting a PO446 code on my 2008 Escalade and I can't seem to figure out why. I've replaced everything buy the canister and the code still persists. ... Master GM Technician. Over 20 years of bumper to bumper GM experience. Chris (aka- Moose) Cadillac Technician. 1,253 satisfied customers. 24 years of experience diagnosing & repairing. Mike S., The code is Circuit malfunction so I change the vent control valve by the charcoal canister no change in how my car is runni... 2002 GMC Sierra 4.3L P0446 P0443 I have a 2002 GMC Sierra with a 4.3L Vortec and 32K miles on it. It sets the P0446 code about every 3 months or so, pretty much like clock work. I have the Haynes manual bought from ..., P0446 Definition. P0446 is a standard OBDII trouble code, applicable to any make or model of vehicle, whether it's a Tahoe or not. Here's its technical definition: P0446: Evaporative Emission Control System → Vent Control Circuit → Malfunction. In layman's terms, P0446 indicates a problem with the EVAP system vent control valve., Ey bob ahave a code po446 evap emission control system vent circuit malf this is on my o3 gmc how do you repair it - Answered by a verified Chevy Mechanic. ... PO446 CODE emission CONTROL SYSTEM VENT CIRCUIT MALFUNCTION, AND YES THE GAS CAP HAS BEEN OPENED AND CLOSED COMPLEATLY!, P0446 Code. I know there are a ton of these threads on here but I can't find one that is helpful to me. I have a 2003 Silverado 1500 LS and my CEL has been on for months with a P0446 code. I replaced the evap canister purge solenoid valve under the hood and a part with the same name next to the fuel tank right behind the cab., To diagnose the P0446 GMC code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour., If your GMC Acadia has the P0442 OBD II code, you should first check the fuel cap. If it’s missing or broken, replace it. If the fuel cap seems ok, you must check the EVAP system for a leak. One of the most common issues that happens with the GMC Acadia is the P0442 trouble code. This code appears when connecting the vehicle to an …, P0446 is a diagnostic trouble code (DTC) associated with a vehicle’s evaporative emissions control system. It signifies an issue in the vent control circuit in your GMC Canyon’s EVAP system, which prevents fuel vapor from being released into the atmosphere. A prevalent issue with the GMC Canyon is the P0446 code., Jim Musselman Discussion starter. 1 post · Joined 2017. #1 · May 4, 2017. My 2006 Silverado threw the code P0446 (EVAP Vent circuit malfunction). I looked at some of the other boards online as to find out how to fix. I have replaced the purge valve solenoid in the engine compartment and the vent valve solenoid under the truck., Mar 1, 2019 · Cleared all codes it resets the IM now it shows 4 highlighted codes, EVAP,CAT,HTR,02S and had no codes I then let it warm up still no codes showed up, drove it around cleared the HTR and CAT NO visible codes on main screen but when i do more diganosis it shows U1300,p0442,p0446,p0455,p0496,p0741,p1153,p1133,p0133,p0153