Quote:
Originally Posted by 80stech
If the DME picks up a bad enough problem with a cylinder it can cut fuel to that cylinder cutting it out completely for emmissions reasons. When you clear the code it resets that process.
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What could be a significant enough problem? It runs great after the codes are cleared. The problem starts with a cold start, every day now it is a lumpy idle in the morning. Some days take longer to smooth out than others. Is the timing or duration of the injection pulse different when cold? I would assume so. What "controls" the injectors? The DME? Should I search for pending codes elsewhere? If so, where? Should I have done anything when I installed the new coils or battery? TIA