Question about 1998 Jeep Cherokee
1998 jeep grand cherokee running rough. black smoke out of the tail pipe. computer check says bank 1 burning too lean. what is the problem?
Sounds like bad injectors, bad O2 sensors, and or too much fuel psi. Check the fuel psi against what the service manual says. If the fuel psi is too high, your regulator is bad. If the fuel psi checks out ok, you likely have a bad O2 or bad fuel injector(s).
Posted on Apr 15, 2009
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Posted on Jan 02, 2017
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