Question about 1992 Plymouth Acclaim
Leaks in the evaporative emission control system may be difficult to find without a "smoke test". You or a shop could force smoke into the evap system and watch where a leak would show up. Could be anywhere between the charcoal canister and the fuel tank. Is your gas filler cap still good? That is one place to check. Trace the evap lines under the car and look for deteriorated rubber lines, loose connections, etc. Check the canister for all lines being connected and tightly fitted.
I hope you find it. If not, have the smoke test done. I hope it wouldn't cost too much. Not sure of the cost.
Posted on Jan 02, 2013
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Posted on Jan 02, 2017
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Evaporative Emission Control System Leak Detected (no purge flow
or large leak)
What does that mean? This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.
Symptoms You likely won't notice any drivability problems.
Causes A code p0455 most likely means one or more of the following has happened:
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