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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (3.6L - DTCS P2135 To U1418) >> Diagnosis And Testing >> P219B-Air-Fuel Ratio Cylinder Imbalance Bank 2 >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
INTAKE MANIFOLD LEAK AT A SPECIFIC CYLINDER ON BANK 2
FUEL INJECTOR ISSUES AT A SPECIFIC CYLINDER ON BANK 2
IGNITION SYSTEM ISSUES AT A SPECIFIC CYLINDER ON BANK 2
CYLINDER COMPRESSION IMBALANCE
CARBON BUILD UP
VARIABLE VALVE TIMING ISSUES
VALVE TRAIN ISSUES

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to .