Hello all, I am stumped and I hope someone on this list can help me. My problem is with my 86 vanagon. At start up the engine runs fine but deteriorates to a rough idle after it is warmed up. I don't notice any problem while driving, only at idle. I found that if I disconnect the coolant temp sensor for the fuel injection system (simulating a cold engine) it runs well. So far, I have replaced the spark plugs, wires, coil, cap, rotor,and oxygen sensor. I have tested other components of the FI system, all check out fine. Have any of you experienced this problem with your vanagons? Any help, comments, or advice on solving this annoying little problem would be geatly appreciated.
Chris 86 vanagon
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