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Code : P1136
Description : P1136 VOLKSWAGEN Long Term Fuel Trim Add. Fuel B1 System Too Lean
Possible causes :
– Intake air leak
– Faulty O2 Sensor
– Faulty Mass Air Flow (MAF) Sensor
– O2 Sensor harness is open or shorted
– O2 Sensor circuit poor electrical connection
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.

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