× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1994 Jeep Grand Cherokee Limited 5.2L Excessive Emissions, Misfire, MIL Lamp on
Posted to Chrysler Driveability on 6/22/2003 7 Replies

Hi Mopar techs,

This truck runs rough and runs rich when first started, sometimes cold and more so hot. The oxygen sensor reads 1.06-1.24v at that time and hangs long enough to set the [...] approx. 2 minutes this will clear up and the votlage drops down to ...

7 Replies Received (View Replies)

  Related Documents & Media  1994 Jeep Grand Cherokee Limited

 
Message Closed w/FIX

car Vehicle Data

1994 Jeep Grand Cherokee Limited

VIN 1J4GZ78Y2R
Engine5.2 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / MPFI
EmissionsFED
SymptomsExcessive Emissions, Misfire, MIL Lamp On
OccursIdle, Intermittently

Trouble Codes

21Oxygen sensor voltage high
Message Closed w/FIX

car Vehicle Data

1994 Jeep Grand Cherokee Limited

VIN 1J4GZ78Y2R
Engine5.2 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / MPFI
EmissionsFED
SymptomsExcessive Emissions, Misfire, MIL Lamp On
OccursIdle, Intermittently

Trouble Codes

21Oxygen sensor voltage high