1st Gen Neon 1995 through 1999 Neons

Code 31

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Old Jun 11, 2007 | 01:08 PM
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Default Code 31

Yay more codes! I got a code 31, just today, and recently the car sort of like jerks when it shuts off and i can smell gas, any idears?
 
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Old Jun 11, 2007 | 01:26 PM
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Default RE: Code 31

Code 31 is for an evap system, there could be 4 diffenrent (P) codes with this code,P0455,P1486,P0442,and P0441.
 
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Old Jun 11, 2007 | 06:39 PM
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Default RE: Code 31

Make sure your gas cap is closed securely.
 
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Old Jun 11, 2007 | 07:49 PM
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Default RE: Code 31

I got it to shut off, but will it come back on after so many miles or would i of known by now? I disconnected the neg cable to reset the pcm.
 
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Old Jun 11, 2007 | 07:53 PM
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Default RE: Code 31

Just keep driving and see what happens.
 
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Old Jun 12, 2007 | 11:29 PM
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Default RE: Code 31

My car is throwing the same code. So far i have replaced, the evap solenoid, and the gas cap but it is still throwing the same code.
 
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Old Jun 13, 2007 | 09:37 AM
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Default RE: Code 31

I hope it dont come back, my uncle had a bich ridding this thing of codes [:@]
 
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Old Jun 13, 2007 | 11:16 AM
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Default RE: Code 31

ORIGINAL: beast4192
My car is throwing the same code. So far i have replaced, the evap solenoid, and the gas cap but it is still throwing the same code.
A code 31 can be any of the following:
P0441 EVAP Purge Flow Monitor Failure
P0442 EVAP Monitor Small Leak Detected
P0443 EVAP Purge Solenoid Circuit
P0455 EVAP Monitor Large Leak
P1486 EVAP Monitor Pinched Hose Found
P1494 Leak Detection Pump Switch Or Mechanical Fault
P1495 Leak Detection Pump Solenoid Circuit

Find out which problem you have by getting the car scanned at getting the "P" code.
 
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Old Jun 13, 2007 | 01:44 PM
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Default RE: Code 31

Thank you, now all i have to do is find some with a scan tool.
 
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Old Jun 13, 2007 | 01:54 PM
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Default RE: Code 31

Autozone, NAPA or some other auto parts store will scan it for free.
 
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