2008 silverado p0442. This easy-to-fix solution could be all you need to restore your EVAP system. 040 inches in diameter. Light went away for a while, then a P0442 (small leak) came on. On Sept. Mar 10, 2015 · Common problem for the code P0442 (small leak in the evap emission system) on the GMC/Chevy 1500 V6 engine. May work for 07-14 as well. Alongside the fuel filler neck there are 2 rubber hoses (in addition to the big fuel filler hose leading to the gas tank). Aha, the old intermittent problem. This type of system primarily uses a fuel tank pressure sensor with vent and purge solenoids. A broken fuel tank pressure sensor. What the code really indicates is that the EVAP system will not hold a specified level of vacuum for a specified amount of time when it performs its leak test. P0445 is typically caused by a short circuit (as the code suggests) or by a bad purge valve (stuck open/closed). Symptom (s): Slow refueling (gas pump would continually shut off) 1. e. 2014 Chevrolet Silverado 1500. to/41U0DifHow to Test a Purge Mar 1, 2019 · I have a 2003 silverado 15004. Models: 2011-2013 Chevrolet Silverado. co 👈==== How to Fix P0442 =====Engine Code P0442 Saving Repair P May 18, 2021 · Summary. P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction. In this Dec 9, 2011 · I have a 2008 Silverado with about 49,500 miles. In some cases, it can also be caused by a software problem in the engine control module. I replaced the gas cap with a genuine gm cap. Both the vent solenoid or purge valve of the EVAP system may be faulty or cannot be closed. A professional shop can use a smoke machine to test precisely where your Spark’s EVAP system is leaking from. This is commonly caused by something as simple as not having your gas cap on completely. A spoilt fuel tank filter neck. Faulty canister vent control valve. 2008 Silverado p0442 code hesitates when starting in morning and will almost die then recover, does this 3 or 4 times - Answered by a verified Auto Mechanic We use cookies to give you the best possible experience on our website. The P0442 code stands for “Evaporative Emission Control System Leak Detected (Small Leak). temp. Usually a loose gas cap or a cheap replacement, but this is my first vehicle with a capless fuel filler. Mileage has been steadily decreasing on me since July and ive been down around Oct 14, 2022 · Here’s a table with all the reasons and fixes to the code P0442 on a Chevy Silverado. Pre-Owned 2008 Chevrolet Silverado 1500 4D Crew Cab in Owasso #R40289. This means that regardless of which make or model of vehicle, the code will mean the same thing. For that reason, the P0446 code will sometimes be a sign that an electrical failure has been detected with either the control circuit or the vent valve, which may result in any number of codes Mar 4, 2009 · A leak is detected by monitoring for a decrease in the vacuum level over a given time period. Once the new MAF sensor is fitted, the Silverado's ECU will Jun 26, 2020 · How to fix Code P0449 EVAP Vent Solenoid on GM vehicles, Silverado , Tahoe, Suburban, Yukon! Make sure that you use quality parts and tools!!!!I hope this vi You’ll need to carefully inspect your entire EVAP system: A common cause is a missing or loose gas cap. 1. Date: Apr-2015. to/h/cE/In this video, 1A Auto shows how to remove, install, and replace the vapor canister vent valve. so like the title says, my moms 03 HD keeps flashing a "P0442 evaporative emission control system leak detected small leak" code for the last couple of months. The factory states that there are seven critical Jun 10, 2015 · Step 1 – Drain the radiator. To diagnose the P0442 2017 Chevrolet Silverado code, it typically requires 1. Leaking or disconnected EVAP hose. M Mar 14, 2020 · Look at the tank pressure with the engine running and the filler cap removed. Your filter canister may also be cracked. P0446 is a diagnostic trouble code (DTC) associated with a vehicle’s evaporative emissions control system. (P0455 large evap leak). 3L it's throwing codes P0442,P0446,P0455,P0496 I have changed the charcoal canister vent 2008 Silverado LT 1500 2WD 5. Mar 29, 2019 · 21 posts · Joined 2009. If you have a small leak, you might not notice any symptoms. Qu A missing or broken gas cap. Apr 30, 2021 · =====Claim your FREE engine code eraser 👉 https://free. Purge Valve. This can only come from a stuck open purge valve. A update to my p0442 code. 245 posts · Joined 2011. You’ll need to verify if your F150 has one or not. 3 4 speed Mar 3, 2022 · P0442 Causes. May 2, 2022 · Common fix for a small evap leak on a Chevy/Gm Oct 26, 2011 · Gorecki. at the SMA shop as we have a look at a 2008 Chevrolet Colorado 3. Jun 7, 2021 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Sep 17, 2018 · A leak in the fuel vapor hose leading from the fuel tank to the intake will throw P0442 in your F150. The EVAP system captures all fuel vapor from the fuel tank and sends them to the engine’s intake in order to be ignited in the normal combustion process. A code P0442 most likely means one or more of the following has happened: A loose or improperly affixed gas cap. A bad gas cap can throw this code. This code indicates engine vacuum applied to the evap system when the purge valve is not commanded on. A prevalent issue with the Chevy Silverado is the P0446 code. 8l. It signifies an issue in the vent control circuit in your Chevy Silverado’s EVAP system, which prevents fuel vapor from being released into the atmosphere. A small leak in the system will cause DTC P0442 to be set. You should see P0128 along with this code. howtoautomotive. Oct 25, 2019 · Brian Eslick from How to Automotive http://www. Subject: Malfunction Indicator Lamp (MIL) Illuminated, Fuel Tank Hard to Fill, DTCs P0442, P0446, P0455 or P0449 Set. #1 · Mar 29, 2019. P0442. Symptoms: With this code there might be no symptoms other than the Check Engine light. P0442 Code Chevy Silverado Diagnosis and Troubleshooting | Drivetrain Jun 27, 2022 · What is the Cost to Diagnose the Code P0442 2017 Chevrolet Silverado? Labor: 1. However, minor tears, or rotten spots in your EVAP hose could also be the culprit. Apr 13, 2017 · 2009 - 2014 Ford F150 - Capless Fuel Filler - P0442 - Got a P0442 code the other day - Evap Emission Control Small Leak Detected. not factory/original brand) A small leak/hole in a fuel vapor hose/tube. Faulty EVAP Purge control solenoid. Enjoy! Jul 18, 2021 · 2008 Silverado p0442 code hesitates when starting in morning and will almost die then recover, does this 3 or 4 times then smooths out Jun 27, 2022 · Code P0442 2018 Chevrolet Silverado Tech Notes. One day I pulled codes p0030, p0053, c0300, P0134, P0449 Mar 19, 2024 · Pre-owned 2008 chevrolet silverado 1500 lt 4d crew cab in richmond #Chevy silverado p0455: evap system large leak detected diagnosis P0446 code 2014 chevy silveradoChevy p0449 silverado gmc vent evap chevrolet p0442 solenoid colorado p0446 code p0455 canyon repair replaced. And while the description might imply a failed converter, odds are the ultimate fault lies somewhere else. This code is often accompanied by other EVAP system codes. Nov 10, 2022 · Evap code p0442 - still. #2 · Oct 26, 2011. There was a P0442 set and a P0442 pending. Charcoal canister leak. Feb 9, 2022 · There are two very common, very easy fixes to solve a P0442 Engine Code: Changing the Canister Vent Solenoid and changing the Purge Valve Solenoid. Leaking fuel tank. We will look at that when going through the steps of how to diagnose a p0449 code. There are a few other EVAP system codes. 3 4x4 that came in with codes, P0440, P0442, P0449, P0453 indicating a problem in the EVAP System. The P0442 code indicates that there is a small leak in the EVAP system, but this is somewhat misleading. If the fuel cap seems ok, you must check the EVAP system for a leak. It is talking about a small leak. A tiny crack or hole in a fuel vapor hose or tube. Jan 24, 2024 · The P0442 code is a diagnostic trouble code (DTC) that indicates a small leak in the vehicle’s evaporative emission control system. This code indicates that your truck’s engine is misfiring and can be a drivability threat. Jul 8, 2018 · Tahoe P0442 Code Defined. Sep 23, 2020 · Generally, a P0442 trouble code is caused by a loose gas cap (one that wasn't tightened enough after fueling the vehicle). 0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Cab; short-bed; VIN7. 2008 Chevy Silverado 1500 5. Most auto repair shops charge between $75 and $150 per hour. While the issue can cause some performance issues from AFR’s, it is usually not serious enough to cause major engine damage. This code typically indicates a leak equivalent to a hole of about 0. com takes you step-by-step through the process of diagnosing code P0171-P0174 lean bank 1 and Apr 28, 2018 · I have a 2008 silverado 2500. Defective purge valve. The P0442 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). If a loose gas cap is not the problem, then the following problems could be causing the P0442 trouble code: Damaged/incorrect gas cap. A P0442 code is a specific indication that there is a small leak. P0449: Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction. Nov 18, 2017 · Come along with Eric O. lots of crap causes the vent valve to leak . Install the fuel cap and close the EVAP system and monitor the fuel tank pressure reported to the ECM. How-to replace the vapor canister purge valve on a 2008 Chevy Avalanche with the 5. 3 flex fuel motor. It was designed to find small leaks consistent accuracy. Nov 15, 2018 · Purge sol on intake man creates a vacuum and the in tank pressure sensor sees the vacuum rise too quickly which causes the 442 code. Damaged/leaking EVAP system hose. If you are in snow country the repairs can wait. I have a SuperChips programmer on it and run the 87 octane tune, I also use this to scan for codes. Issue Severity: LOW – Continued driving for a short period of time is okay. Damaged or loose gas cap. Started on me just over two years ago and its been a battle since. EVAP codes are a pain and dreaded once they appear. : 15-06-04-002. A good example is the Silverado v6 vs the Silverado v8. Replaced PN 214-2082 (2 port canister with vent) and use 5/8" heater hose to the vent and a small piece to the connect the rigid black line. Before you do anything, make sure the gas cap is on and sealed tightly. A P0442 code is typically caused by a leak in the system. Time is money and this is what we think Dec 7, 2022 · The codes P0442, P0446 and P0455 are all EVAP System codes and shouldn't affect the operation of the truck. Diagnosis: This trouble code doesn’t affect how the car runs but does cause excessive emissions. The code technically stands for: Evaporative Emission System High Purge Flow. If your Silverado’s computer doesn’t know the engine temperature, it’ll keep the fuel mixture rich. It all started about a year ago, I received what I believe was the P0449 The revised EVAP CVS valve assembly is a sealed unit that is vented through a remote pre-filter that is designed to be mounted atop the fuel filler housing. Unfortunately, when this code appears by itself, it doesn’t specify which part of the EVAP system the leak is coming from. I attribute my successes to god and give him the glory Jun 27, 2022 · Code Tech Notes. Larger, more severe leaks will trip a different code and require a different approach to troubleshooting. GerardNY. EVAP hoses and clamps may be cracked, disconnected, or punctured. Check for the following conditions: A loose, missing, damaged, or improperly installed fuel cap. You can drop the tank to easily change the fuel pump module or a lot of people will remove the box or even just tilt it up to get at the fuel module without dropping the tank. Hello all, new to the forum! I have a 2013 Silverado 1500 LT 4x4; 5. 2014 Chevrolet Silverado 2500/3500. P0442 is an OBDII trouble code. Possible Causes of P0442. The “Catalytic Converter Efficiency” Diagnostic Trouble Codes (DTCs) P0420 and P0430, are among the top 10 DTCs technicians face. Repair Urgency: Get this fixed within the next month. everything runs fine the light and the code just keeps popping. CEL stayed on most of the time, maybe twice in 4 months dash said 'tighten gas cap'. so I wasn't throwing parts at the problem. 3L engine. There's a ton of these posts on here but i can't pinpoint the problem. It further prevents them from escaping into the atmosphere. I have the code p0442. I have also read that someone had this same code on their avalanche and it ended up being a fuel pressure sensor. It also improves This video will help you repair a rough idle code P0442 on your Silverado 07-11. I replaced the fuel pump , evap canister, gas cap and the purge valve and still have the light. However, it's essential to note that the P0442 code does not pinpoint the exact location of the leak; it only indicates that a small leak is present. The leak can occur from. There are many potential causes of diagnostic trouble code P0442. This code may be seen with other EVAP system codes. Wirings to EVAP purge control solenoid. Other small leak in EVAP system. P0442 Diagnostic Theory for Shops and Technicians. Nov 29, 2022 · Fasten the two locating screws 7 and reconnect the wiring connector, pushing it tight until it makes an audible "click" sound 8 . Apr 22, 2020 · It indicates that there is a short circuit in the Evaporative Emissions Control (EVAP) System. but can be other leaks rust holes in the fuel vapor system . It is designed to capture and store fuel vapors from the fuel tank. As a professional mechanic of more than 30 years I've Sep 12, 2023 · How to fix a Chevy or GMC P0442 Code: Evaporative Emission System Small Leak DetectedAmazon Link to Smoke Machine: https://amzn. I replaced the fuel pump because the fuel Apr 2, 2018 · P0442 code and how i fixed it. Faulty vent o-ring seal. Fuel Tank Pressure Sensor (If Equipped) If the fuel tank pressure sensor has gone bad, it can cause many problems, including the P0442 code. Nov 21, 2023 · P0442 (small evap leak) & intermittent starting issues. When this happens, the exhaust the O2 sensors see will be out of range, and it could throw P0420. i guess its from a tiny leak in the EVAP gas vapor system, anyone had this The cost to diagnose the P0442 2016 Chevrolet Silverado code is 1. Check Details. Ended up being the fuel tank pressure sensor. Engine code P0449, P0440, P0441, P0446. P0446 Code: Evaporative Emission Control System Causes & Fixes Jan 7, 2023 · The most common cause of a P0445 code is a failed purge control valve or the wiring to it. I'm assuming that ac delco is the one to get. 5. 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. 3L non-flex. After reading the link that @xPosTech gave, and other forum posts, I decided to tackle my issue small steps at a time. If the engine has an occasional misfire it will not need immediate attention, but if it constantly Jun 1, 2023 · When the vehicle's computer (ECM) detects a small leak in the EVAP system, it triggers the P0442 code. Missing or damaged O-rings at EVAP canister fuel vapor and purge line fittings. 136K miles. My check engine light came on with code p0030, which I know is oxygen sensor. to/47g1psq The most common check engine light cause is an EVAP leak. Tested the evap vent solenoid and it was bad, replaced it, reset the code. This is a fairly simple Aug 7, 2018 · Conclusion. One of these rubber hoses connects to a metal fitting on the filler neck. In some cases, you might notice a faint gasoline smell when the car is parked in a garage. The p0442 is a slow (small) leak in the evap system. 3. Step-by-step guide on how to check a p0449 Jul 28, 2018 · If your Chevy Trailblazer has the P0442 OBD II code, you should first check the fuel cap. May 23, 2016 · The code P0442 is set when the PCM detects a small EVAP leak. ”. I’ll go over these in better detail later on. But now, the only way to remove the coolant from your Silverado is to disconnect the lower radiator hose and allow it to drain into your drain pan. The code technically stands for: Evaporative Emission System Leak Detected. In the old days, you'd loosen the petcock and drain the radiator. Bulletin No. 3L V8 4x4 1 Owner Clean Southern Carfax. Apr 24, 2024 · P0449 Failure Symptoms. Aug 19, 2018 · This trouble code is a reference number that is given to you when you plug your Silverado into a OBDII scanner. If this is the case and your gas cap is seating properly, the code should go away by itself or worse case send a code Apr 4, 2023 · In conclusion, the P0442 code in a Chevy Silverado indicates a problem with the evaporative emission control system (EVAP). #1 · Dec 20, 2007. Purge Valve replaced, Vapor canister replaced, vent valve and solenoid replaced, filler neck, gas cap, etc etc etc. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). Sep 7, 2016 · Threw a P0455 and P0449 code. Here are some common reasons you may see this code: A loose or incorrectly affixed gas cap. Inspected all the lines from the parts I replaced and no problems there. For More Info visit us at: http://1aau. 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. Mar 7, 2018 · Correctly diagnosing P0446 code on Chevrolet and GM cars and trucks Mar 31, 2014 · Something on your fuel pump module must be broken. For DTC P0442 (small leak detected), the vehicle will set this code due to small leak. To ensure correct installation follow the procedure outlined below. 2008 1500 LTZ Crew Cab. If the pressure doesn't change at all and you don't hear a leak the tank pressure sensor may be bad. In rare cases, you may smell a Jun 5, 2018 · In this video, I am going to go over how to test Evap Purge valve, how you diagnose a p0496 p0455 p0456 p0442 it to see if it is bad and also how you can pr In this video, I am going to go over IF YOU HAVE CODES P0442 & P0455 WATCH THIS VIDEO FOR A SUPER EASY FIX FOR ALMOST ANY CAR!In this case we have a 2014 Chevrolet Malibu! And it’s got codes:P0 Sep 29, 2020 · Labor: 1. I have the same issue but it is due to corrosion of the top of the fuel pump module. nonda. On Saturday Sept. If your OBD-II diagnostic scanner registers a P0442 DTC, you must find and repair an EVAP system leak. The prop Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. A damaged fuel tank. For either DTC P0442 or P0445, it is Jan 12, 2020 · P0442 & P0455 Possible Solution. If you have P0300 and a cylinder-specific misfire Apr 11, 2022 · P0452 definition: Evaporative Emission Control System Pressure Sensor Low Input. 3 liter; ext. When the ECU detects a small leak, it triggers the Check Engine Light to alert the driver. Note that for the purposes of leak detection in the EVAP system, leaks are categorized into small, large Dec 21, 2014 · Symptom (s): P0446 triggering Check Engine Light with hard+pending codes. Apr 24, 2018 · 175 posts · Joined 2015. In this Jun 27, 2022 · The P0442 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). Changed everything associated with the normal reasons. co 👈=====Engine Code CHEVROLET P0430 Saving R . Reason. Since that problem has started I have had several other codes. There is a factory service bulletin for all the models from 2000 through 2021. Tighten the cap or replace it. A quick search shows that these capless fillers are pretty well designed and rarely Oct 14, 2022 · Chevy engines differ in designs and layouts. Fix. I did test the new valve with the scan tool, but Nov 5, 2019 · It's not uncommon for p0496 to come and go. Nov 7, 2023 · How to fix p0442 engine codeChevy evap leak 2008 code avalanche yukon gmc silverado 2007 2005 detected fill gas try when tank tire spare line Chevy p0442 code suburban 2007P0134 code chevy silverado. I have the p0442 check engine code on my 2008 Silverado. Jul 26, 2018 · Engine Temp Sensor Codes. Out of spec air-to-fuel ratios. There are three basic types of EVAP leak detection methods in use today: Natural leak detection. P0442 code definition P0442 is a diagnostic trouble code (DTC) that is seen when a evaporative emission control system malfunction is present. Turn OFF the ignition, and all electrical components, including the scan tool. LEER SOLUCIÓN DEL CÓDIGO O Feb 25, 2024 · The P0442 code indicates a fault with the EVAP system, specifically a small leak. Common causes of the P0442 code include a faulty or loose fuel Dec 20, 2007 · 10197 posts · Joined 2004. This sensor is used to complete the test but not considered part of the p0442 code Jun 3, 2018 · In this video we have a look at a 2002 Chevrolet 1500 5. If it’s missing or broken, replace it. This code appears when connecting the vehicle to Mar 8, 2017 · Quick regarding EVAP system (P0446) I have a 2008 silverado 4. P0496 is a universal OBDII trouble code. Not all vehicle’s have a fuel tank pressure sensor. If it's not reading 0 the tank pressure sensor may be bad. xml. cleared the code and it comes back. Defective vent valve. 0. Poor idling. Occasionally it has a rough idle, and sometimes when accelerating it has a misfire accompanied by a clunking sound. 7 that has a Service Engine Soon Light on with a code P0442 Small EV Dec 10, 2021 · Even slight variations in the air/fuel mixture will cause the converter temperature to rise significantly. The V8 has more cylinders than the V6, meaning that the evaporative emission control system differs from the V6. 4. Loose or damaged gas cap. O2 Sensor Codes. In addition, the DTC could set due to an unsealed EVAP system, so verifying all purge lines are properly connected should be confirmed. Dec 7, 2023 · Chevy Silverado P0455: EVAP System Large Leak Detected Diagnosis. a stuck open purge valve or stuck open canister vent valve. It could either be a broken wire or, more likely, a shorted wire. This system is designed to stop fuel vapor pollution (HydroCarbons) from entering the atmosphere. Feb 12, 2021 · in this video I will share with you how to test an EVAP system on a chevy truck, how to find the cause of code P0442 Enjoy!!! =====Claim your FREE engine code eraser 👉 https://free. Aug 21, 2022 · How to fix P0172 P0175 Fuel Trim System Rich Bank 1 and 2P0442 P0455 Evaporative Emission System Small and Large Leak Detected. Leave a comment if you have any issues or questions. Hello, Having a P0455 trouble code on my 05 Silverado 5. The video is a May 29, 2020 · I chased that code years ago on 2000 silverado. Difficulty starting the engine, in some cases. A hole in the top of the purge solenoid. Common causes of the P0442 code include a malfunctioning fuel cap, a leak or damage in the EVAP system line, charcoal canister, or fuel tank, a malfunctioning vent valve or purge valve, a faulty FTP sensor, or a failed leak detection pump. And I didn’t see any leaks on the filler neck when I dropped the fuel tank. Faulty purge volume control valve. #snapon#chevy#cooltools https Dec 21, 2018 · Guys in this video I'm replacing my purge solenoid in my 2007 Chevy Suburban with the 5. Check your hose for leaks, and fix them or replace them. Te suministramos todo lo que necesitas saber sobre el código DTC P0442 Descripción, causas, síntomas y posibles soluciones. Aug 7, 2019 · - Silicone paste → https://amzn. One of the most common issues that happens with the Chevy Trailblazer is the P0442 trouble code. A damaged charcoal canister. It is common for most auto repair shops to charge between $75 and $150 per hour. most common is the vent valve under the truck bed area. many do a smoke test less guessing . Ive replaced pretty much everything I can think of that may cause that. Disconnected or leaking EVAP hose. The code P0442 indicates that the engine computer (PCM) has detected a small leak in the EVAP system. #4 · May 24, 2018. Jul 31, 2018 · Chevy Silverado P0496 Meaning. To diagnose the P0442 Toyota code, it typically requires 1. A non-conforming gas cap (i. FYI for everyone reading this thread. A gas cap that does not meet vehicle manufacturer standards. Dec 26, 2017 · In this video we should you what we think is the quickest and easiest way to diagnose a basic Purge/Seal EVAP system. P0449 deals with the evaporative emissions control system. A loose fuel tank filler cap is the most common cause that will trigger the P0442 code. 7, I took the truck to the car wash and got the under carriage sprayed off because of a ton of mud. . The P0300 is for engine misfire and is probably related to the EVAP System issues. The EVAP system captures all fuel vapor from the fuel tank and sends them to the engines intake in Jul 30, 2018 · P0442 doesn’t specify where the leak is coming from, only that there is a leak. Oct 24, 2019 · In this video I locate an evap leak on an 08 Chevy Silverado. It often appears with, or is related other codes, such as P0420, P0446, and very often P0440. 12, the check engine light came on and I scanned the system. I replaced the purge valve, cleared the code and it comes back. When the Chevy Tahoe’s computer detects that the EVAP Aug 14, 2018 · P0300 is a generic OBDII code that can occur with the Chevy Silverado. I'll get a new purge valve then. 2. Got a P0442 code, did some research, even got an inexpensive bi-directional scan tool. ** UPDATE ** This did NOT f Nov 21, 2023 · OBD II fault code P0442 is a generic code that is defined as, “Evaporative Emission System Leak Detected (Small Leak)”, and is set when the PCM (Powertrain Control Module) detects a small leak in the EVAP (Evaporative Emission System). Fortunately, being a truck, your Silverado's ride height means that jacking the truck up isn't even Jun 19, 2022 · The P0442 code is a diagnostic trouble code that your PCM logs when there is a fault in the EVAP system. 1704585. An open gas cap can also result in P0455. ho zg fo pg ue qs xi fh el jm