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 …

Apr 26, 2022 · PCV hose has been replaced and clamped 3 or 4 times since first code for PO442 Emission Control System (small)/PO455 (large), both have shown up over the years, corrected …

Nov 12, 2011 · Code P0456? on a 2007 Dodge Caravan SXT Jump to Latest 16K views 10 replies 6 participants last post by ImperialCrown Aug 21, 2012 N

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 …

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May 2, 2016 · What fault code (DTC) are you seeing: Small, Medium or Large leak? On a 20+ year-old vehicle, I have seen deteriorated, oil-soaked rubber hoses in the engine compartment cause evap …

Oct 23, 2023 · 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 want to be sure that they are …

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...

May 13, 2023 · This is used by engine management software for setting air - fuel mixture. ImperialCrown post #26 shows only 1 digit difference in part numbers. It appears the different part numbers show a …