Question about 2001 Dodge Neon

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Why is there the check engine light?

Just out of nowhere, my check engine light came on. I'm not sure why and there seems to be no problem with how my car runs...

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The check engine light only comes on when the computer detects that there is something wrong in the operation of the vehicle. Take the car to an autozone, advanced autoparts, pep boys, car quest; they will run a ODB2 test on the car and tell you exactly what wrong. Plus the diagnois is free!

Posted on Oct 09, 2008

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The check engine light can come on for many, many reasons,,,,some major others minor, but irritating
It is meant to be a helpful warning...before the major damage is done.

On your can retrieve the codes (without a code reader) by:

  1. turn the ignition key forward (so the odometer reading appears) and back 3 times.
  2. after the 3rd time...the OBD II codes will appear
  3. have a pen handy to record them
  4. they will be for example......P0127.....P1757
  5. you can then enter on any search engine 'OBD code P0127' and you can understand what area
  6. the codes are universal
  7. the results might not be helpful...but might be a start
the following link is also very helpful in explaining the 'check engine' light and the OBD codes

hope this helps

Posted on Oct 09, 2008


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