1999 jeep cherokee runs rough, stalls no check engine light is on. it has fuel pressure ,plugs cap and rotor are like new the only memory code is po132 o2 upstream sensor reported high voltage what could be the problem?
no check engine light is comming on but hesitates and sometimes stalls plugs,cap.rotor and wires are in very good condition,has good fuel pressure. the only code stored was p0132 upstream o2 sensor high voltage reported. but even that is reading properly now.
I would replace that upstream O2 sensor. It sounds like it is failing intermittently
i believe it is intermittant but even after clearing the code when it stalls or hesitates the code doesnt return and the o2 sensor reads normal
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