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1990 Jeep Cherokee 4.0L Excessive Emissions
Customer failed emission test with CO at cruise. Scoped and scanned computer. Found O2 sensor not cycling and poor pattern on secondary ignition. Replace O2 sensor with O.E. Replace dist. cap, rotor and plug wires. Still failing CO at cruise. Rescan, found com...
FIX posted 4/7/1998
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Message Closed
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| VIN | 1J4FJ58L3L |
| Engine | 4.0 L / 6 cyl |
| Emissions | US FEd. Emissions |
| Symptoms | Excessive Emissions |
| Occurs | Always |
Message Closed
Vehicle Data
1990 Jeep Cherokee
| VIN | 1J4FJ58L3L |
| Engine | 4.0 L / 6 cyl |
| Emissions | US FEd. Emissions |
| Symptoms | Excessive Emissions |
| Occurs | Always |
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