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Does anyone know of a reliable Ford specialist within a reasonable radius of Sunderland. My daughter's Fiesta 1.25 Zetec hesitates when using throttle at low revs. Doing a forum search suggests it may be the throttle position sensor at fault but I would rather the car be checked for fault codes and properly diagnosed than just have one component after another replaced.
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You can test this part easily yourself by checking the resistance the resistance should change as you turn the screw on it. It could also be the wiring loom connecting to it (happened on my old Fiesta). Any mechanic worth their salt should be able to read the fault codes as your car use the industry standard diagnostic port.
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Thanx, Rattle, I will test the resistance myself with my trusty Lidl multimeter. I have also read that resetting the ECU can help, how is this done? Do you just disconnect then reconnect power to it?
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Rattles advice spot on, wiring loom connectors are a well known problem. The fuse is the purple 3amp fuse marked ecu, remove for ten mins & reconnect & start but allow to idle only for 5 mins before you touch the throttle or drive. helps it relearn its idle. Do it when its hot.
Make sure it is running on Zetec 5-30 oil
Doc
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