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1993 Jeep Grand Cherokee Laredo 5.2L MIL Lamp on
This Jeep will latch rich intermittently and set a code 21. When this happens the o2 will read 1.125v, we have replaced the aftermarket o2 with a Mopar unit and the problem remains. All power and grounds check out fine with the largest voltage drop of .200mv. ...
FIX posted 10/23/2001
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Message Closed
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Related Documents & Media | VIN | 1J4GZ787Y0 |
| Engine | 5.2 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | US FED EMISSIONS |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
| Misc. | Sbec-11A P/N:56027989-A |
Trouble Codes
| 21 | oxygen sensor shorted high |
Message Closed
Vehicle Data
1993 Jeep Grand Cherokee Laredo
| VIN | 1J4GZ787Y0 |
| Engine | 5.2 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | US FED EMISSIONS |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
| Misc. | Sbec-11A P/N:56027989-A |
Trouble Codes
| 21 | oxygen sensor shorted high |
Video