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What causes the idle to rise when you put it in park or neutral after the iac valve tps and ecu were replaced on a 1990 Volvo 740 GLE?
Wiki User
∙ 13y ago
Did you ever get an answers to this question? I have a 1990 740 GL with the same problem?
Thanks
Engine Coolant Temp. sensor ECT (#1346030), sensor for the ECU, not the sensor for the temp gage, I recommend BOSCH
Look under the intake close cylinder #3
Wiki User
∙ 13y ago
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