can not scan ecm while the car is running.
05-08-2010, 09:11 AM
#1
Staging Lane
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can not scan ecm while the car is running. When trying to tune the car if I try to scan it while driving it wont let me. it will scan if the engine is off. I'v swaped ecm, ran new wire to data port to ecm and tried new power and ground. any ideas
