simonkit Posted August 21, 2008 Share Posted August 21, 2008 Fiesta 1.4 2004 Recently had a problem with the Fiesta... It suddenly started running very rough & engine warning light came on, called RAC who said it showed a fault on CYL 4 & it was only running on 3 CYLs. Turned out to be coil failure so I replaced coil/spark plugs & ignition leads & whilst it's much better it now seems slightly hesitant during acceleration sometimes.. my thoughts are maybe the fuel filter or the MAF / Lamba sensor have been affected by the coil failing ? All advice appreciated simon Quote Link to comment Share on other sites More sharing options...
RS2000 Posted August 21, 2008 Share Posted August 21, 2008 Try resetting the ECU by pulling out the appropriate fuse. I don't know which one it is without looking it up in the manual. Quote Link to comment Share on other sites More sharing options...
simonkit Posted August 22, 2008 Author Share Posted August 22, 2008 Try resetting the ECU by pulling out the appropriate fuse. I don't know which one it is without looking it up in the manual. Thanks for the reply...... thing is that I did this, disconnected the battery for 30 minutes, it cleared the engine management light. It seems too much of a coincidence that a sensor etc would fail at the same time as the coil ?? simon Quote Link to comment Share on other sites More sharing options...
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