Quote:
Originally Posted by Baffler
Take off the coil packs and clean the surface where they mate to the cam cover.
Have you also considered that it could be a faulty engine temp sensor, the one near the thermostat...? Disconnect it and see if there's a change in idle speed.
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Had a look at the coils, check all the LT and HT(new) leads and there all fine. why would taking them off and cleaning the surface make a difference? The cam cover is pretty clean all round.
Disconnected the engine temp sensor, didnt make much change in the revs, the temp gauge went down when discounnected. I presume its all working correctly.
Is it worth trying the Draper HT testers? Although at the last service there were no errors on the ECU which should detect a faulty coil...