Posted on Jul 28, 2011

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1996 pontiac firebird 5.7 liter engine light on po1441

1 Answer

ZJ Limited

Pontiac Master 17,989 Answers
Posted on Jul 28, 2011

ZJ Limited

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Two choice dudes code there...

DTC P0441 - Evaporative Emission (EVAP) Control System Incorrect Purge Flow
EVAP emission canister purge is contolled by a valve which allows engine vacuum to pull stored fuel vapors from fuel tank into the engine to be burned, rather than be vented to atmosphere. A vacuum switch is used to detect when flow exists. If the PCM commands purge and sees that the switch is closed (indicating no detected purge flow) P0441 is set.
With a P0441 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:

Common Chrysler fix - Replace Leak Detection Pump / LDP
Repair damaged EVAP lines or canister
Repair open or short in voltage feed circuit to Purge Solenoid
Repair open in PCM purge command circuit
Replace purge Solenoid
Replace vacuum switch
Repair restriction in Evap line or canister or soleniod
Repair resistance in purge connector
Replace PCM

DTC P1441 - Evaporative Emission (EVAP) System Flow During Non-Purge.
Most generally caused by a purge valve stuck open. the only way to diag for sure is with a gm tech 2 scan tool and a smoke machine. but if dont mind spending a few bucks as a good quess. Replace the purge valve.

Hope this helps.

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Thank you for using FixYa, have a nice day.

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1996 pontiac firebird 5.7 liter engine light on po1441

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ZJ Limited

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