1996 XJ running rich...Any thoughts ???
CF Veteran
Joined: Jun 2009
Posts: 2,173
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From: Columbus, Ohio
Year: 1997
Model: Cherokee
Engine: 4.0, comp cam, 99 intake, apn header, neon injectors, Thunderbolt 2.5" High Flow Cat
Check engine light on? usually an issue with one of the o2 sensors, map sensor, or throttle position sensor...
CF Veteran
Joined: Jun 2010
Posts: 1,378
Likes: 0
From: Hayward, CA
Year: 1996
Model: Cherokee
how many miles are on the current O2 sensors? Over time O2 sensors will drift and begin to report inaccurate readings. If its a drifting sensor, the sensor can be bad without throwing a code
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