Running ruff unpluged o2
04-01-2012, 11:52 AM
#1
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Year: 1988
Model: Cherokee
Engine: 242CID I-6
Running ruff unpluged o2
88 xj 4.0 went On a trail run and it wouldn't stay running in the back country (my luck) and a guy with a wrongler said unplugg you o2 sensor so I thought I would give it a try and it runs better than wen I got it. So should I leave it or fix it?
04-01-2012, 05:02 PM
#4
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Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
On an 1988? I'm guessing that it's original. You should replace it, it's going to cause your engine to run rich and really slurp the gas, fouling spark plugs and eventually destroying your catalytic converter.
04-01-2012, 05:33 PM
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Year: 1999
Model: Cherokee
Engine: 4.0
Absolutely replace it! The engine will be more efficient with a solid oxygen sensor circuit. They aren't that expensive.
Bosch is fine for the 87-90 4.0 engine; it is what your XJ came with off the factory line. Later Jeep switched to NTK.
Bosch is fine for the 87-90 4.0 engine; it is what your XJ came with off the factory line. Later Jeep switched to NTK.
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