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P0442 Diagnostic Trouble Code Discussion for June 2015

EVAP System Small Leak Detected


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Trouble Ticket Help Requests for DTC P0442
Help Request Posted
2003 Buick Rendezvous CX 3.4L Excessive Emissions, Poor Idle Quality, Cuts out VIN: 3G5DA03E43
P0442: EVAP System Small Leak Detected. ... morning.Unable to fault for coolant loss,overflow just about empty rad full. Unable to duplicate smoke ,however had stumble and stalling out. Scantest =p0442, p1106, p1189. Check freeze frame and ST...
June 21, 2015
2004 Volkswagen Passat GLS 1.8L Poor Idle Quality, MIL Lamp on VIN: WVWPD63B54
P0442: Incorrect purge flow. Okay, so this car came in with no real running issue, just a check engine light. Codes were for brake vacuum malfunction (vacuum pump was leaking), and had codes for very small leak in evap and incorrect purge flow. Replaced all breather/vacuum hosed around in...
June 30, 2015