Diagnostic Codes


Old 12-01-06, 02:23 PM
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Location: AZ
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Unhappy Diagnostic Codes

I failed my Emissions test due to these diagnostic codes, P0441 and P1655. Where can I locate what this means? I have a 97 Buick Park Ave.
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Old 12-01-06, 03:00 PM
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P0441 Evaporative Emission Control System Incorrect Purge Flow
Not sure about the P1655
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Old 12-01-06, 03:16 PM
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Probably a faulty gas cap. Retighten or replace gas cap. A leaking gas cap will throw evap codes.

EVAP codes are related to the fuel system. Either faulty canisters, etc.
Old 12-01-06, 05:32 PM
Join Date: Oct 2000
Location: Livonia, Michigan
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P1655 - Starter Disable Circuit Malfunction

I guess that means it can't keep you from accidently engaging the starter when the car is running. Big deal (roll my eyes).... how often do you accidentally start your car when it's running. This should have nothing to do with emissions. I hope they only held you back for the P0441, and not for the P1655. Otherwise, I'd raise a stink.

Sometimes your car will set spurious codes. It is best to read them, write them down, erase them, then reread them after a week to see which ones return. It's the codes that return that you should worry about.
Old 12-01-06, 07:19 PM
Join Date: Apr 2006
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If I remember right ( no access to Mitchell or All Data)..........That P1655 has to do with the Vehicle Anti-Theft (VATS) circuitry.........Have seen several lately and the circuitry would make ya blind...........Have you been having a no crank problem????

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