I just ordered a obd1 scanner to check a code on my 1989 5.0. Can i plug it in while the car is running. Im a new owner of the car and the check engine light comes on about 10 min into my trip. But when i turn the car off and back on the check engine light goes away
Im sure its something to do with the 02 sensor because one of them has the wires missing and another is broken but still attached (hope my harness is still there). But im also getting a low idle speed 600 or so but normally when first starting and settling its around 750rpm. Hoping the code reader i ordered lets me know what issues i have and why i have a low idle that feels as if its about to die which it did one day while braking downhill
Im sure its something to do with the 02 sensor because one of them has the wires missing and another is broken but still attached (hope my harness is still there). But im also getting a low idle speed 600 or so but normally when first starting and settling its around 750rpm. Hoping the code reader i ordered lets me know what issues i have and why i have a low idle that feels as if its about to die which it did one day while braking downhill