My daily driver is an 11/01 Nissan Maxima S A33 with a VQ30DE 3 litre motor.
I purchased it S/H when it had 85,000 km on it. Overall it is a satisfactory unit.
However at 118,000 km the idle speed assembly windings burnt out, along with the idle speed controller on the ECU. When this happened the motor idled at around 1800 rpm with a lot of surging. After a lot of searching the trouble was found and the damaged parts replaced.
Now at 125,000 it has done the same thing again! Anyone have any ideas on what could be the cause? I run it partly on 92RON fuel and also on 95RON. My mechanic says the lower grade fuel should not be making any difference. What do you guys think?
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