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Home >> Jeep >> 2008 >> Liberty Sport, 4WD, Part Time, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P1593 To P2135 >> P2097-Downstream Fuel Trim System 1 Rich >> Possible Causes
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Possible Causes

Possible Causes 
EXHAUST LEAK
FUEL DELIVERY SYSTEM
O2 SENSOR, WIRING, OR CONNECTORS
ENGINE MECHANICAL SYSTEM
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.

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