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Ford Fiesta 2002 - 2008 ECU failures

Ford Fiesta 2002 – 2008 misfiring on two cylinders.

The 2 cylinder misfire is the most common fault caused by the engine ECU for the Fiesta 2002 - 2008, the fault is originally caused by a faulty ignition coil pack that spikes voltage back to the engine ECU and blows the ignition output circuits for 2 of the cylinders. We can test and rebuild your engine ECU to cure this problem.
ECU_FORD_SIM
Common faults:
ECU system types:
  • SIM21
  • SIM22
  • SIM24
  • SIM210
Common failing part numbers:
To purchase a test/rebuild of your own unit then please select your part number from the options above, if you do not want to pay for a rebuild in advance but would still like to send your unit in for testing then please fill in this test form.
If you require further advice then please contact us.