ECM-A1 is for a faulty temperature signal. Check ECT sensor for a leak or corrosion around the sensor harness. If that is ok then most likely the thermostat is either stuck open or opening up too slow. Would recommend you replace the thermostat first since it is the least expensive repair. As for the other code, is the fault a permanent fault or intermittant fault? Also can you have the DSA module scaned for codes as well?
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Wednesday, December 23rd, 2009 AT 12:22 AM