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1994 Jeep Grand Cherokee Laredo 4.0L MIL Lamp on
Vehicle came back in having re-set the same code. checked scan data again. No problems noted. checked output of o2 at the sensor with a lab scope. Tested for response with artificial fuel using rich/lean method. o2 responds great. checked TSB'S. Found one TSB ...
Summary posted 5/14/2004
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Related Documents & Media | VIN | 1J46Z558S1 |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / EFI |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| 21 | O2 Short to ground going over 1V |
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Vehicle Data
1994 Jeep Grand Cherokee Laredo
| VIN | 1J46Z558S1 |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / EFI |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| 21 | O2 Short to ground going over 1V |
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