Quote:
Originally Posted by bcredliner
A cold engine starts in open loop. In open loop the ECM controls the air/fuel mixture reading input from sensors. Might be a bad MAF, coolant sensor or thermostat. Try cleaning the MAF with MAF cleaner. Spray liberally. Be sure to spray the wires that are kind of hidden. Doesn't always work but worth a try.
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Good points. Read all the temp sensors and MAF realtime values. A week or two ago a few of us posted the MAF rate at idle for reference. Search MAF and g/sec I don't remember what thread.
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