P0455 code chevy trailblazer

2004 Trailblazer LS P0455. by flag74 » Mon Aug 10, 2015 8:44 pm. I recently got the p0455 code on the Trailblazer 4.2 auto 4wd. I replaced the purge solenoid, the vent valve, the charcoal canister, and the gas cap. We also did the smoke test and found no leaks. The only thing I could think of left is to disconnect all the lines and blow them ...

2004 Trailblazer p0455 large leak evap, as well as - Answered by a verified Chevy Mechanic. ... How to fix code P0455, Chevrolet trailblazer 2004, 6 cylinders, 4.2 ...Are you getting a P0449 engine code on your Chevy? Read about the causes of EVAP failure and how to diagnose and fix the engine error.Pulling. Working on a 2007 Chevy trailblazer 4.2 L engine. Pulling codes P2119, P300 , P0495 and P0455. Engine light just came on with these codes.Alright so im pretty pissed my dyno tune date is set for feb 6th and im pulling the P0455 code.. Which is evap system gross leak, I changed the gas cap "not... in this thread in this sub-forum in the entire …Any large leak in your evaporative emission control system, or EVAP system, can signal trouble code P0455. You may be wondering, how do I fix trouble code P0455? Learn more about this helpful emissions system and how you can restore your vehicle and remove this trouble code. What Is an EVAP System? What are the Symptoms of a Large Leak?Code P0455 Chevrolet Tech Notes. The P0455 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). A loose fuel tank filler cap is the most common cause that will trigger the P0455 code. There is a factory service bulletin for all the models from 2000 through 2021. The factory states that there …6 ago 2023 ... Code P0455 may appear on some Chevy vehicles. On a 2010 Chevrolet Silverado 1500 LS 5.3L V8, for example, this DTC is set when “the EVAP system ...

Blazernut Lifetime Premium · #2 · Jul 17, 2007. droos said: Today my 04 TB LS started running rough & lacks power. Took it to Advance Auto Parts for a scan. They found P0303 "Cylinder 3 Misfire Detected" and P0455 "EVAP Emission Control Systems Leak (Large)". I noticed some other misfire postings mention large rainfalls.Any large leak in your evaporative emission control system, or EVAP system, can signal trouble code P0455. You may be wondering, how do I fix trouble code P0455? Learn more about this helpful emissions system and how you can restore your vehicle and remove this trouble code. What Is an EVAP System? What are the Symptoms of a Large Leak? Same 3 codes , p0455, p0442, & p2138 on my 2009 Chevy Impala and brought the car to a General Motor or Buick Dealer Service Department to replace vent solenoid or solenoid fuel tank evaporator control . Also replaced gas pedal position sensor.The EVAP system prevents harmful gases from escaping into the atmosphere and does not affect how the engine runs, which means this code is not a breakdown risk. System Gross Leak. When there is a large leak in the Chevy Tahoe’s EVAP system, it will throw the P0455 OBDII Code. P0455 indicates a large leak in the …Master's Degree. 17,895 satisfied customers. Working on a 2007 Chevy trailblazer 4.2 L engine. Pulling. Working on a 2007 Chevy trailblazer 4.2 L engine. Pulling codes P2119, P300 , P0495 and P0455. Engine light just came on with these codes.May 23, 2011 · Diagnostic Test Code (DTC) P0496 means that there is purge flow through the Evaporative Emissions System (EVAP) during non-purge. The Powertrain Control Module (PCM) measures fuel tank pressure by reading the voltage from the Fuel Tank Pressure Sensor (FTP). The PCM controls the pressure by opening and closing the EVAP Canister Purge Solenoid ... 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. 1 (855) 347-2779 · [email protected]. Read FAQ. GET A QUOTE. Trouble code P0332 means the PCM is receiving a reading that the knock sensor is too low, which can result in higher emissions and engine problems.06 chevy trailblazer with fault code P0506 whats best way to clean throttle body - Chevrolet 2006 Trailblazer Ext question. ... P0455 p0452 p0117 ...

Build and Price the 2023 Trailblazer: choose trims, accessories & more to see pricing on a new Chevy Trailblazer.P0495 "Cooling Fan High Speed' = the fan clutch has failed, time for a replacement. This is unrelated to the water pump problem and it's a well know problem in 2003-2008 Trailblazers. Be sure to only use the new , modified part - number 15293048. Any other part number will only be replacing the bad part with another potential bad part.1 / 1. Tahoe & Suburban - 2008 Yukon Denali EVAP System Lines - I'm having the common slow to fill the fuel tank problem, likely caused by the previous owner (s) regularly overfilling the tank. I'm going to be replacing the EVAP canister soon, and although the recommended practice is to use some compressed air to blow out all...The code P0455 is set when the engine computer recognizes a large leak in the Evaporative emission control system (EVAP). The vehicle's EVAP system is sealed, it's main purpose is to prevent gasoline vapors in the fuel tank from escaping into the atmosphere. The most common culprit is the gas cap that is left open or not closed …

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Users have reported code P0455 for the following makes: Chevrolet (especially on a Chevy Silverado), Dodge, Ford, Jeep, and Nissan. P0455 on Some Chevrolet Vehicles. Code P0455 may appear on some Chevy vehicles. On a 2010 Chevrolet Silverado 1500 LS 5.3L V8, for example, this DTC is set when ...I have a p0455 Evap code and when filling the pump shuts off automatically after a few seconds. What are the parts I could check? From memory, i know there is a valve and an evap canister somewhere near the tank. ... Chevy Trailblazer SS Forum. A forum for all things Trailblazer SS including mileage, horsepower, transmissions, interior mods ...GM Tech (Cam) Owner/Technician. Vocational, Technical or Tra... 28,691 satisfied customers. I have a 2007 trailer blazer with a 4.2. Getting a P1400 code, and a low idle code that got erased. ….Aug 10, 2018 · October 19, 2023 by Jason. P0455 in the Chevy Silverado is a trouble code that indicates your truck has a LARGE evaporative emissions leak. This code indicates that there is a large leak in the evaporative emission control system and can cause issues such as decreased fuel efficiency, rough idling, and increased emissions. Dec 27, 2022 · What Does Chevrolet Trailblazer Code P0014 Mean? Chevrolet Trailblazer P0014 definition: Exhaust Camshaft Timing- Over-Advanced Bank 1 Issue Severity: SEVERE – Stop driving immediately. Repair Urgency: Fix this code immediately (same-day if possible) to avoid damage to multiple internal engine components. Diagnosis: This trouble code severely impacts the drivability of your vehicle. The most ... P0455 Causes. Missing, defective, damaged, or loose gas cap (*most Common) Faulty or stuck EVAP vent control valve. Faulty or stuck EVAP purge volume control valve. Cracked or disconnected EVAP hose. Cracked or damaged charcoal canister.

0:00 / 2:20 How to Fix P0455 Engine Code in 3 Minutes [2 DIY Methods / Only $4.61] nonda 76.2K subscribers 645K views 2 years ago UNITED STATES ============================= Claim your FREE...31 may 2018 ... the truck couldn't pass emission due to a code p0455, customer replaced gas cap but it came back on,, vent solenoid or a broken line could ...What Does Chevrolet Trailblazer Code P0420 Mean? Chevrolet Trailblazer P0420 definition: Catalyst system efficiency below threshold (Bank 1) Issue Severity: MODERATE – Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid further damage to your …The EVAP system prevents harmful gases from escaping into the atmosphere and does not affect how the engine runs, which means this code is not a breakdown risk. System Gross Leak. When there is a large leak in the Chevy Tahoe’s EVAP system, it will throw the P0455 OBDII Code. P0455 indicates a large leak in the …To learn more about the EVAP system and purge valve and how they can trigger codes like p0496, read our technical explanation here. P0496 in Various Makes. Although it can affect any vehicle regardless of make, code P0496 often happens to owners of GM vehicles (Chevrolet, Pontiac, and Dodge, among others).Engine Code P0455: Evaporative Emission Control System Leak (Gross). EVAP System has a gross leak. Engine Code P0455 means the Evaporative Emissions System is now …I have a 2006 Chevy Trailblazer with the check engine light on. I had the code checked and it came back as P0455. So I checked the gas cap thinking it was loose or cracked when I noticed inside the fuel receptical the "spring loaded flap" at the top was missing. Could this cause the P0455 problem and if so how difficult is this to repair. JeffThe code P0455 is set when the engine computer recognizes a large leak in the Evaporative emission control system (EVAP). The vehicle's EVAP system is sealed, it's main purpose is to prevent gasoline vapors in the fuel tank from escaping into the atmosphere. The most common culprit is the gas cap that is left open or not closed …P0455 Causes. Missing, defective, damaged, or loose gas cap (*most Common) Faulty or stuck EVAP vent control valve. Faulty or stuck EVAP purge volume control valve. Cracked or disconnected EVAP hose. Cracked or damaged charcoal canister.

This page is meant to help you troubleshoot the Chevy Trailblazer P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents

The Bank 1 dictates the side of the engine with cylinder #1. Because code P0017 deals with the “B” sensor, you are dealing with the exhaust camshaft side. Other codes deal with Bank 2, along with the “A” sensor. Reference the service manual if you need more information about the location.When the Chevy Trailblazer computer detects that the EVAP system is purging when it should not be, it will throw the P0496 OBDII code. Chevy Trailblazer P0496 Causes. There are many things that can cause the P0496 trouble code on the Chevrolet Trailblazer. Here are the most common problems that will throw the code.8 months ago I made a video on a p0442 code I was getting on my trailblazer, and a few weeks ago I made one for a p0455 code as well. Well the p0442 code had...P0449 Chevy Trailblazer. A very common issue with the Chevy Trailblazer is the P0449 code. This trouble code is a reference number that is given to you when you plug your Trailblazer 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, …3.6L. 6 CYL. 2WD. AUTOMATIC. 130,000 MILES. Gas cap has been replaced. Both the purge valve and the vent valve have been removed and checked by applying voltage and sucking on them. Both seem to be working properly. From under the hood, I can blow through the tube attached to the purge valve and hear air coming out in the gas tank. Quick overview Chevy Trailblazer with a P0014 error code, “Exhaust (B) Camshaft Position System Performance.”For more information read here. https://www.bac...May 13, 2019 · Checking a C0455 steering wheel position sensor code , using data pids and scope capture . FIX CODE P0107 P0106 ENGINE LIGHT ON CHEVY, CHEVROLET, BUICK, GMC, CADILLAC Car Scanner: https://amzn.to/2tdNh5k Check out our Amazon Store for the tools a...

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Blazernut Lifetime Premium · #2 · Jul 17, 2007. droos said: Today my 04 TB LS started running rough & lacks power. Took it to Advance Auto Parts for a scan. They found P0303 "Cylinder 3 Misfire Detected" and P0455 "EVAP Emission Control Systems Leak (Large)". I noticed some other misfire postings mention large rainfalls.This is the quick and easy way to clear the P0449 and p0455 codes on a Chevy Silverado. Process is similar for all Silverados. Link to AC Delco Solenoid kit...Jul 13, 2018 · Fuel Injectors. P0171 indicates that your Chevy Trailblazer is either getting too much air or not enough fuel. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out in one specific cylinder. You may see a cylinder misfire code or fuel injector-specific code with P0171. Jul 4, 2009 · This bulletin cotains a revised service procedure and claim information. Discard all copies of bulletin 07099, dated June 2007. Condition. Some customers of 2002-2004 Chevrolet TrailBlazer EXT and GMC Envoy XL, and 2004 GMC Envoy XUV vehicles may comment on an SES light illumination, which may be accompanied by a fuel odor, and/or a few drops of fuel on the ground when refueling the vehicle. 2005 Chevy Uplander LS with a code:P0455 Where is the canister purge valve solenoid? Under hood, or under the car - Cars & Trucks question. Search Fixya ... Sep 20, 2010 • Chevrolet TrailBlazer Cars & Trucks. Not finding what you are looking for? View Most Popular. Cars & Trucks. Related Question. Code p0455 on envoy 2004.2005 Chevy Trailblazer(100.000 miles)...Engine light came on;code reads P0455;Evaporative emissions system leak - Answered by a verified Chevy Mechanic. We use cookies to give you the best possible experience on our website. ... How to fix code P0455, Chevrolet trailblazer 2004, 6 cylinders, 4.2 extended version. ...2007 TRAILBLAZER 5.3 P0455 CODE HELP. Hey there, I'm new here and have looked at several threads about this code P0455. I have a 2007 Trailblazer LT with a 5.3 engine and 179,000 miles. I have replaced the fuel cap and Evap Canister (the one by the fuel tank). I cleared the code and it popped up again.Master's Degree. 17,895 satisfied customers. Working on a 2007 Chevy trailblazer 4.2 L engine. Pulling. Working on a 2007 Chevy trailblazer 4.2 L engine. Pulling codes P2119, P300 , P0495 and P0455. Engine light just came on with these codes. ….

Chevrolet. TrailBlazer. 2021. On the Chevrolet TrailBlazer and other OBD-Ii equipped vehicles, diagnostic trouble code (DTC) P0480 indicates an issue with the cooling fan's control circuit; specifically, that the powertrain control module (PCM) has detected an issue with the fan or its circuit. This can be the result of a number of failures ...A few weeks ago I got myself a 2004 Trailblazer, 4.2 LT. It drives great but very quickly my CEL came on with the P0455 code (large leak in the EVAP system). I took my car to a local repair shop for a general check up. And because of the P0455 they also did a smoke test but couldn't find any leaks whatsoever.Sep 14, 2018 · This page is meant to help you troubleshoot the Chevy Trailblazer P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents P0455 Causes. Missing, defective, damaged, or loose gas cap (*most Common) Faulty or stuck EVAP vent control valve. Faulty or stuck EVAP purge volume control valve. Cracked or disconnected EVAP hose. …Pulling. Working on a 2007 Chevy trailblazer 4.2 L engine. Pulling codes P2119, P300 , P0495 and P0455. Engine light just came on with these codes. First, replace the PCV valve and check for vacuum leaks. Get some carburetor cleaner or starting fluid and spray the engine are down. If the engine revs or responds to the external fuel, you have a vacuum leak. 2. P0455. The control module tests the evaporative emission (EVAP) system for a large leak.This can lead to engine efficiency issues. Learn more about this code with this quick guide. Get expert answers to your auto repair questions . In The Garage with CarParts.com. Features. Automotive World; ... P0430 Code; P0300 Code; P0455 Code; P0401 Code; P0172 Code; P0446 Code; P0011 Code; P0340 Code; Automotive …The P0455 OBD-II code means the engine computer has detected an Evaporative Emissions Control System (EVAP) Malfunction or, to be precise, a ‘Gross Leak Detected’. Basically, this means there is a large leak in the EVAP system. The EVAP system captures the fuel vapors evaporating from the storage system and releases them back into the ... 1 / 1. Tahoe & Suburban - 2008 Yukon Denali EVAP System Lines - I'm having the common slow to fill the fuel tank problem, likely caused by the previous owner (s) regularly overfilling the tank. I'm going to be replacing the EVAP canister soon, and although the recommended practice is to use some compressed air to blow out all...1. SWPS -Photos of whats inside. J. jtotten. Recommended for you. A forum community dedicated to Chevy Trailblazer and GMC Envoy owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, towing capacity, maintenance, and more! P0455 code chevy trailblazer, Working on a 2007 Chevy trailblazer 4.2 L engine. Pulling codes P2119, P300, P0495 and P0455. Engine light just came on - Answered by a verified Chevy Mechanic ... Pulling codes P2119, P300 , P0495 and P0455. Engine light just came on with these codes. We replaced the engine a while ago in the vehicle has been sitting for a …, This code belongs to a range of related evaporative emission trouble codes which include P0450, P0452, P0453, P0454, P0455, P0456, P0457, P0458, and P0459. What are the possible causes of the P0451 code? Defective EVAP pressure sensor (fuel tank pressure sensor) The P0451 code is considered one of the more straightforward …, How to fix a Chevy or GM P0455 engine code: Evaporative Emission System Large Leak DetectedHow to Test a Purge Valve https://www.youtube.com/watch?v=5rQelbI..., Service Stability , TRAC. Computer codes C0455 and c0244. 2004 Chevy Trailblazer. Codes p0455. Answer: Code p0455 is a large EVAP leak. A common cause for this is a loose or faulty gas cap. Or if the truck was running when you were filling it with gas, this can also cause this code. Another common cause is a faulty / sticking EVAP vent solenoid ..., Working on a 2007 Chevy trailblazer 4.2 L engine. Pulling codes P2119, P300, P0495 and P0455. Engine light just came on - Answered by a verified Chevy Mechanic ... Pulling codes P2119, P300 , P0495 and P0455. Engine light just came on with these codes. We replaced the engine a while ago in the vehicle has been sitting for a …, For DTC P0455 (large leak detected), the vehicle will set the code due to large leak or purge blockage. A large leak can occur from an unseated tube connection, damaged tube, a stuck opened canister vent valve or stuck closed purge valve. For DTC P0442 (small leak detected), the vehicle will set this code due to small leak. The leak can occur from, Here are the most common causes of P0128: Thermostat Stuck Open – Far and away, the most typical cause for the P0128 code is a thermostat that is stuck open. When a thermostat is stuck open, it allows coolant to flow through the engine at all times. When this happens, the engine is “over-cooled” and never reaches the proper operating ..., The PCM CAN judge if the leak is large or small and will set different codes for large or small leaks. I think your P0455 is a large leak and a P0442 would be for a small leak. A common way for a service center to look for a leak is a "smoke test" where a machine puts smoke into the system and the tech looks for where it comes out., For DTC P0455 (large leak detected), the vehicle will set the code due to large leak or purge blockage. A large leak can occur from an unseated tube connection, damaged tube, a stuck opened canister vent valve or stuck closed purge valve. For DTC P0442 (small leak detected), the vehicle will set this code due to small leak. The leak can occur from, OBD II fault code P0455 is a generic code that is defined as "Evaporative Emission System Leak Detected (large leak), and is most commonly set when the PCM (Powertrain Control Module) detects a large leak in the evaporative emissions control system., Apr 9, 2020 · Chevrolet. TrailBlazer. 2021. On the Chevrolet TrailBlazer and other OBD-Ii equipped vehicles, diagnostic trouble code (DTC) P0480 indicates an issue with the cooling fan's control circuit; specifically, that the powertrain control module (PCM) has detected an issue with the fan or its circuit. This can be the result of a number of failures ... , The P0455 diagnostic trouble code appears when there’s a leak in the Evaporative Emission Control (EVAP) system, and the system can’t maintain pressure. The EVAP system usually consists of ... , I am throwing a P0455 code on a 2008 Chevy Malibu LT Z and it is not the gas cap but the gas cap light and the check engine light are both coming on. Mechanic's Assistant: ... 05 chevy trailblazer engine light is on with a trouble code of P0455 ( evap emission control system leak large). I checked the gas cap (it was tight)., Diagnostic Test Code (DTC) P0496 means that there is purge flow through the Evaporative Emissions System (EVAP) during non-purge. The Powertrain Control Module (PCM) measures fuel tank pressure by reading the voltage from the Fuel Tank Pressure Sensor (FTP). The PCM controls the pressure by opening and closing the EVAP Canister Purge Solenoid ..., Kuwait. Lebanon. Oman. Qatar. Saudi Arabia. UAE. Yemen. Explore all of the Chevrolet websites worldwide and choose a Chevy website based in North, Central & South America, Europe, Asia, Middle East and Africa., What Does Chevrolet Trailblazer Code P0304 Mean? Chevrolet Trailblazer P0304 definition: Cylinder 4 Misfire Detected Issue Severity: SEVERE – Stop driving immediately. Repair Urgency: Fix this code immediately (same-day if possible) to avoid serious engine damage and dangerous driving conditions. Diagnosis: A multiple …, Sep 22, 2019 · Just a quick video on replacing my Evap canister vent valve on my 2005 Trailblazer. I was pulling a p0455 code, and after watching a few video's I seen that ... , A code p0455 most likely means one or more of the following has happened: A loose or improperly affixed gas cap. A non-conforming gas cap (i.E. Not factory/original brand) Other leak or damaged piece in EVAP system. Possible Solutions With a p0455, the most common repair is to: Remove and reinstall the gas cap, clear the codes, and drive for a ..., Jul 28, 2018 · The vapor canister purge valve is a common cause of the P0442 trouble code and the Chevy Trailblazer. The purge valve lets fuel vapor out of the charcoal canister and into the intake manifold. They are easy to replace. There are a few clips that you need to find and remove. , 1 - 3 of 3 Posts. dsfloyd · #2 · Jul 22, 2009. If you have checked/replaced the gas cap you need to look for a hole in the evap system. the p0455 is a large leak and the other is a small leak in the system. Its going to be in a hose or other part of the fuel evap system. Others may have specific fixes to these codes., P0445 is a common OBD II trouble code. It’s generic, which means that it has the same meaning for the Chevy Trailblazer as it would for any other vehicle. It indicates that there is a short circuit in the Evaporative Emissions Control (EVAP) System. P0445 is typically caused by a short circuit (as the code suggests) or by a bad purge valve ..., Also referred to as a sending unit, the fuel level sensor is mounted in the fuel tank. It consists of an arm with a float attached to a variable resistor. For an in-depth discussion about how the fuel level sensor works in different vehicles, read our explanation here.. Code P0463 can be quite tricky because regardless of the amount of fuel in your …, SOURCE: idle problem on a 2006 chevy trailblazer 4.2. The code indicates an issue with the Throttle Actuator control. This is a little motor on the throttle body that opens the throttle plates at idle. That control motor may be bad and thus, causing a low idle. I hope this helps. Posted on Jul 21, 2009, Code P0455 Chevrolet Tech Notes. The P0455 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). A loose fuel tank filler cap is the most common cause that will trigger the P0455 code. There is a factory service bulletin for all the models from 2000 through 2021. The factory states that there are seven ..., The P0455 OBD-II code means the engine computer has detected an Evaporative Emissions Control System (EVAP) Malfunction or, to be precise, a ‘Gross Leak Detected’. Basically, this means there is a large leak in the EVAP system. The EVAP system captures the fuel vapors evaporating from the storage system and releases them back into the ..., I have a 2013 Chevy Cruze and it's giving me the large evap leak detected code which is a P0455 and I was wondering how - Answered by a verified Chevy Mechanic. ... 05 chevy trailblazer engine light is on with a trouble code of P0455 ( evap emission control system leak large). I checked the gas cap (it was tight)., Aug 10, 2018 · October 19, 2023 by Jason. P0455 in the Chevy Silverado is a trouble code that indicates your truck has a LARGE evaporative emissions leak. This code indicates that there is a large leak in the evaporative emission control system and can cause issues such as decreased fuel efficiency, rough idling, and increased emissions. , 2011 Chevy Malibu had codes P0014, 0016,0017 fixed exhaust solenoid and intake solenoid only have P0016,0017 now but car is idling high at stops and seems like it takes a while to shift. Any ideas wha …, P0455 Causes. Missing, defective, damaged, or loose gas cap (*most Common) Faulty or stuck EVAP vent control valve. Faulty or stuck EVAP purge volume control valve. Cracked or disconnected EVAP hose. Cracked or damaged charcoal canister., Service Stability , TRAC. Computer codes C0455 and c0244. 2004 Chevy Trailblazer. Codes p0455. Answer: Code p0455 is a large EVAP leak. A common cause for this is a loose or faulty gas cap. Or if the truck was running when you were filling it with gas, this can also cause this code. Another common cause is a faulty / sticking EVAP vent solenoid ..., The Code P00455 code is often associated with P0440 code. What the P0455 code means. P0440 is the general code for a problem with the Fuel Evaporative Emission System. The P0455 code specifically indicates a large leak in the system, not a fuel leak, but one in the vapor recovery system. What causes the P0455 code?, P0455 Causes. Missing, defective, damaged, or loose gas cap (*most Common) Faulty or stuck EVAP vent control valve. Faulty or stuck EVAP purge volume control valve. Cracked or disconnected EVAP hose. Cracked or damaged charcoal canister., 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. P2122 trouble code definition The P2122 OBD-II trouble, or fault, code means that the vehicle’s on-board computer has detected low voltage in the throttle position sensor (TPS), which is usually below 0.17 volts. What the ...