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Originally Posted by LMP
Jumping terminals A and B does make the fans run. Same on mine.
Temp sensor near thermostat is the CPU sensor, and the CPU turns the fans ON and OFF based on this temperature.
ANy overheating problems with the 3.1 lets one think of failed head gaskets....was that story already played with yours? ANy disruptions in the heat delivered by heater?
DTC34 is HIGH vacuum...(thus low throttle opening) in condition where higher throttle opening (TPS ) indicates vacuum should be lower. Turns to default mode nad uses TPS alone for fuel metering.....possibly explaining the variation you noticed in gaz mileage.
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No didnt have any head gasket problems or heat delivery problems from the heater.
The engine worked top notch until then.
I checked and cleaned the distributor cap and rotor and it started to idle and start a bit better but something still isnt right.
it idles rough when in gear at a light and tends to stumble on takeoff.
Antifreeze has't gone down but I only drive it to work daily about 15 minutes each way.