1993 Jeep Cherokee 4.0L Poor Idle Quality, Surge
I have a problem 1990 jeep cherokee 4.0. Rough idle after it warms up. The O2 sensor performs normally until it is closed loop for about five minutes. It then locks on 4.98 volts, the short term fuel trim eases its way up to the max of 255(lean) and the long t...
FIX posted 8/26/2004
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Message Closed w/FIX
Vehicle Data1993 Jeep Cherokee
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Message Closed w/FIX
Vehicle Data
1993 Jeep Cherokee
VIN | [No VIN Available] |
Engine | 4.0 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / efi |
Emissions | us |
Symptoms | Poor Idle Quality, Surge |
Occurs | Hot, Idle |