Volkswagen P1139: Long Term Fuel Trim Add. Fuel, Bank 2 System Too Rich
Is your scanner showing Volkswagen P1139?
No worries. We'll show you what it means and how to deal with it.
Volkswagen P1139: Long Term Fuel Trim Add. Fuel, Bank 2 System Too Rich
OVERVIEWWhat Does The Volkswagen P1139 Code Mean?
Engine started, battery voltage must be at least 11.5v, all electrical components must be off, the ground between the engine and the chassis must be well connected, the exhaust system must be properly sealed between the catalytic converter and the cylinder
What Are The Potential Causes Of The Volkswagen P1139 Code?
- Air intake system leaking, vacuum hoses leaking or damaged
- Air leaks located after the MAF sensor mounting location
- EGR valve sticking, EGR diagramleaking, or gasket leaking
- EVAP vapor recovery system has failed
- Excessive fuel pressure, l
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Duralast EGR Valve EGR4397
>>> Volkswagen Jetta Exhaust Gas Recirculation (EGR) Valve Gasket
>>> Volkswagen Vacuum Hose Parts
>>> Exhaust Manifold Gasket for Volkswagen Jetta
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Volkswagen P1139, DTCDECODE.
