What is the most common cause not to drop to normal idle speed on a warm engine (XUD9TE)? It keeps on running on fast idle, even with hot engine, with or without airco switched on.
Things I checked: Vacuum hoses - OK Temp sensors (3 in total in the thermostat housing) - OK Diaphragm and cable - OK Idle and fast idle setting screws - OK
BTW, the airco only works on revs higher than idle. Do these two things have a link? Thanks.
Temp sensor connection to the ECU gone dicky?
Normally the aircon would up the idle itself though.
J
Must be the cable on the green connector on the thermostat housing, right? And is this a common problem?
That of the aircon is right. But also with it switched off, the speed doesn't drop. Is it likely that they are linked to eachother?
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