my check engine light is flashing a code of 12 and 55. what are these codes

Asked by Mar 31, 2007 at 06:55 PM about the 1996 Mitsubishi Eclipse RS

Question type: Maintenance & Repair

check engine light is flashing a code of 12 and 55. what are these codes?

4 Answers


Hi ckw! Code 12 is "Air flow sensor fault" and code 55 is "AV valve position sensor". Time to see a pro on this one. Good luck!

2 of 2 people found this helpful.

I had the same problem but it was a few more sensors. If you dont get those corrected asap then more sensors will go out

1 of 1 people found this helpful.

Sensors go out on an individual basis, whether they are tied into the same system (i.e. ABS,Engine, Fuel, etc.) or not.

1 of 1 people found this helpful.

By doing a simple Google search I was able to find the answer to this question. The answer to what the codes were above is obviously not correct especially since DSM's do not have an AV Valve

1 of 1 people found this helpful.

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