JeepsterSC
Registered User
JeepsterSC-Where would these grounds be located?
The one that bolts to the back of the driver's side cylinder head is most likely the culprit, I believe that's where the o2 sensors ground to. The exhaust shop may have unhooked it if they were gonna be doing any welding. I think there should also be grounding straps on each of the motor mount brackets