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Home >> Jeep >> 2007 >> Wrangler Sahara, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P1607 To P2138 >> P2096-Downstream Fuel Trim System 1 Lean >> Possible Causes
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

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. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

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