Quote:
Originally Posted by Jeffman
I experienced rough start-up and idle bumping up and down (500-1200 rpm) for about ten seconds during the last cold snap, it was 23F in my garage. Happens only when the car has been sitting overnight. And I now always get P29E0 fuel mixture code and sometimes P0171 lean code. I'm thinking injectors because it only happens when sitting overnight cold.
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My thoughts would be a leaky injector.