3800 ENGINE STALLS AFTER WARMUP CLOSED LOOP,HARD OR WON"T START BACKUP REPLACED CRANK SENSOR,INTAKE GASKETS,CLEANED T BODY,O2 SENSOR,TEMP SENDER' ONLY CODE WAS PO128, NO CODES NOW?
My car has 145970 miles.
My car has an automatic transmission.
Hello, thanks for writing in. The steps you have taken are all valid and help! The coolant temperature sensor next to the thermostat housing needs to be changed, if that is not what you meant by the "temp sender". If you are passed this point and still having no luck, test or replace your mass airflow sensor. Again, if this does not work, then you will want to look into the idle air control valve, and possibly the EGR system. Also double check that all the work you have done so far is holding. Make sure the throttle body is connected and air tight, make sure the plugs are clean, dry, and tight, and make sure there are no vacuum leaks. For more help with testing, contact our service department to schedule an appointment.
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