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 …

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 …

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 …

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 …

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 …

May 2, 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 …

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...

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 …

Oct 30, 2014 · P0121 Throttle Position Sensor Circuit Insufficient Activity P0420 Catalyst System Low Efficiency P0442 Evaporative Emission (EVAP) System Small Leak Detected P0455 …

Aug 22, 2016 · Hello everyone, I have a 2002 grand caravan EX 3.8L. Pulled the codes and I have 2 issues. Large evap leak (and small evap leak) and oxygen sensor. The oxygen sensor …