Thread: loping cold start

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Might want to clear any (if any) codes.Then the first code is the fault and the rest are reflecting what the first one is doing.Might want to consider the temp sensor.The EGR does create bad idle conditions,but when carbon build up is present,it should be consistent no matter what temps.Thinking out loud that is true until what ever carbon was holding it open was cleared.To clean that is alittle labor on your part and a help section from your local parts store screen gasket for only $8.00.

Originally Posted by 1gary

Might want to clear any (if any) codes.Then the first code is the fault and the rest are reflecting what the first one is doing.Might want to consider the temp sensor.The EGR does create bad idle conditions,but when carbon build up is present,it should be consistent no matter what temps.Thinking out loud that is true until what ever carbon was holding it open was cleared.To clean that is alittle labor on your part and a help section from your local parts store screen gasket for only $8.00.

Tried that, the only code that comes back is for the IAC. Tested the MAP, and it reads good on the scan tool. Checked vacuum and noticed that at idle the needle bounced between 20 and 23psi very rapid. Checked compression and my lowest is 205 and highest is 215 on an engine with 202K miles on it! Going to decarbon the engine now and see how that goes