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Home >> Dodge and Ram >> 2012 >> Journey SE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (3.6L - DTCS P06DE To P2174) >> Diagnosis And Testing >> P2099-Downstream Fuel Trim System 2 Rich >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
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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