96 zj random shut off

gt500swim

Well-Known Member
Joined
Dec 11, 2010
Location
Gastonia
just put a new exhaust on a zj along with a new downstream o2 sensor. it will now shut off randomly and randomly sputter then just die. checked ground wires, battery voltage is 12.8, the plug wire to cyl. 3 is swollen? could it just need a set of plugs and wires? it runs fine before and after it acts up. please help? maybe a weak coil? what are the resistance specs?
ps. the exhaust kit included a cat, and dynomax kit.
 
What brand O2 sensor? Should be Mopar or NTK only, not Bosch. The upstream is the 'important' one anyhow. Better to replace both at same time if you're gonna be changing them.

Did you unhook the battery while working to reset the PCM?
 
i actually think theguy briught mea bosch o2 sensor... and no i did not disconnect the battery i will do that and see what happens. any more suggestions?? thanks for your help!
 
Back
Top