Nov 22, 2020 · I take it that there are no actual drivability issues when the 0442 code is present - even when the condition is legit. I know that most times environmental conditions / change in ambient air …

Mar 4, 2018 · You have to be careful when resolving evaporative leak code P0442. Here is a statement of the criteria test for this code. P0442-EVAP SYSTEM MEDIUM LEAK When Monitored: Engine …

Oct 11, 2013 · The evap codes (P0442/P0455) are separate and won't have an effect on driveability. You still have a fuel vapor evaporative management issue (leak). It could be cracked rubber vapor …

Apr 26, 2022 · I have a one owner PT that despite my strict maintenance has wasted the engine. All the rest of the PT, paint body, interior, wheels, tires, etc. are near perfect. I need to find an engine, any …

May 1, 2025 · If the code is P0442 your theory about fuel volatility changes between summer and winter is NOT the cause of an evaporative emission leak. During the 2004 time era Chrysler evaporative …

May 3, 2016 · This situation could set codes P0442 or P0456. The other evaporative leak test the system performs is a non-intrusive leak test. When the engine is powered down, and no fuel is being …

Oct 9, 2017 · 2008 Impala, 3.5 V6. The CEL was on this morning, and the OBDII reader determined that it was from a P0455 code, meaning the Evap system has a leak. I...

Jan 6, 2014 · P1391= Intermittent loss of CMP or CKP (Cam or Crank position sensors) P0455= Evap Leak Large P0442= Evap Leak Small

Oct 23, 2023 · Those 2 codes would be unrelated. The spark plugs are harder to fire to when cold. They may be carbon fouling? As the engine warms, it is able to burn off the carbon and fire normally. You …

Dec 11, 2023 · Some background: I am the original owner of 2003 PT Cruiser GT (automatic). I used it as a daily driver from 2003 until 2017 when I parked it because of recurring engine issues (more on …