DTC B1139 Dodge
Cylinder #2 Above Knock Threshold
Cylinder #2 Above Knock Threshold
Description
Engine running (ground connections between the engine and the chassis must be well connected), and the ECM detected that the knock sensor for this particular cylinder was above the threashold to properly function. Note: Contact surfaces between knock sen
Cause and Solution
Contact surfaces between knock sensor and cylinder block are dirtyKnock Sensors not tightened to be exactly 20 Nm.Knock sensor(s) have failedEngine Control Module (ECM) is not connected or has failedThere is a fuel contaminationEngin
Video Guide
Diagnostic Info
- DTC Code: B1139
- Brand: Dodge