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Surging idle (dies sometimes)
Posted 02 February 2006 - 12:18 AM
Posted 02 February 2006 - 12:27 AM
Posted 02 February 2006 - 01:34 AM
Posted 02 February 2006 - 12:49 PM
I have a 93 legacy with the 2.2 and about a week ago the idle started surging (500-1000) and idleing really rough. It will even die sometimes when the car is just sitting. Another one of my cars had a simalar problem and it was the coolant temp sensor so i replaced that but it changed nothing. Any ideas would be great. The check engine light will go on at highway speeds but never stays on more then 30 sec's or so. I dont have a reader so i havent pulled the codes.
Pull the ECU codes
Posted 02 February 2006 - 09:37 PM
Posted 06 February 2006 - 02:56 PM
Had the same surging problem on daughter's 90 2.2.
Swapped out the idle air control unit and all is well.
Wish I had thought of the seafoam treatment though.
Posted 07 February 2006 - 10:09 PM
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