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?

shores007
10

Asked by Apr 17, 2007 at 08:25 AM about the 1999 Jeep Cherokee 4 Dr SE 4WD

Question type: Maintenance & Repair

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.

2 Answers

98DAK
2,495

I would replace that upstream O2 sensor. It sounds like it is failing intermittently

2 out of 3 people think this is helpful.
shores007
10

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

1 out of 1 people think this is helpful.

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