P00AF
Turbocharger/Supercharger Boost Control "A" Module Performance
DTC P00AF, sometimes indicated as P00AF00 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing turbocharger/supercharger boost control "a" module performance.
The P00AF code means that the turbocharger or supercharger boost control "A" module is not performing as expected. This could be due to a variety of factors, including a malfunctioning boost sensor, a clogged air filter, or a faulty boost control module.
If you have a P00AF code, first check to make sure that the boost sensor is properly installed and that there is no debris blocking the air filter. If those things check out, then the next step is to test the boost control module. If the module is found to be faulty, then it will need to be replaced.
- P00AF: Turbocharger/Supercharger Boost Control A Module Performance
- P00AF: Turbocharger/Supercharger Boost Control "A" Module Performance
- P00AF: Turbocharger (TC)/supercharger (SC) boost pressure control A – module performance
- P00AF 00: Turbocharger (TC)/supercharger (SC) boost pressure control A - module performance
See Also: Related Error Codes
Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.
- S2018000009 - POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
JEEP: Malfunction indicator lamp (mil) illuminated. Diagnostic trouble codes (dtcs) P00AF ? Turbocharger boost control module ?A? Performance and/or P226C ? Turbocharger boost control module ?A? Slow response. - NTB20-071 - EQUIPMENT
NISSAN: 2016-2019 titan xd diesel; mil on with dtc P226C stored if you confirm the mil is on and dtc P226C (tc boost control slow response) is stored, and dtc P00AF (boost pressure control) is not stored in the ecm, and binding and/or resistan - S2018000009 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
JEEP: Malfunction indicator lamp (mil) illuminated. Diagnostic trouble codes (dtcs) P00AF ? Turbocharger boost control module ?A? Performance and/or P226C ? Turbocharger boost control module ?A? Slow response. - V011306 2033034 - ELECTRICAL SYSTEM:SOFTWARE
VOLKSWAGEN: Technical bulletin (update programming - mil on, dtc P00AF stored in ecm fault memory): software diagnosis fault causes P00AF to set, commonly when operated in areas with high altitude. Mil on P00AF turbocharger/supercharger boost control
2021 JEEP WRANGLER
While driving on a one way high way. Was about to overtake a semi truck. While half way on the opposite lane doing a legal overtake my acceleration decreased significantly, nearly causing my passengers and i to get into a head on collision with the another vehicle. All of this was due to the fact that the Jeep’s acceleration was decreased. The following warning appeared and code was registered: check engine light code P00AF service electric throttle control stop/start unavailable service stop start system acceleration issues after shutting down my engine all the codes disappear and vehicle precedes to normal driving. I am extremely worried that this might happen again and pace me and my loved ones in a dangerous situation as well as other people on the road
VEHICLE SPEED CONTROL, ENGINE ELECTRICAL SYSTEM
2015 RAM 3500 with 69000.0 miles
Consistently getting a P00AF engine code. Pertains to the turbo boost actuator. Apparently this has become a common problem with many of the Ram 6.7l cummins engines. This can lead to poor engine performance and eventually catastrophic engine failure. Currently the repair cost just for the actuator through mopar is $3000. Obviously this is a recurring issue with these trucks, at a substantial cost to the consumer. I began noticing that my engine brake would not engage when descending grades, and then i started getting an intermittent engine light would come on, now it comes on all the time. I had a local parts store look up the engine code for me and it logged a P00AF condition. I googled the information and realized that this is a very serious issue that could become a very expensive repair if not addressed in a timely manner. In my opinion, a recall should be issued for this.
ENGINE, ENGINE
2010 VOLKSWAGEN JETTA with 5.0 miles
Car will unpredictably stall some times, close the ignition switch and engine will be able to start,,, will go in limp home mode when the glow plug light will illuminate and check engine light comes on for dtc P00AF....
ENGINE, FUEL/PROPULSION SYSTEM POWER TRAIN
2010 VOLKSWAGEN JETTA with 72010.0 miles
My 2010 vw Jetta sportwagen got the glow plug light intermittent flash starting on 72k miles. In the cold morning i could drive 10-15 minutes without issue. However, once the glow plug is on, it could not exceed 40mph. Here's the diagnostic from the dealership: 72017 confirm mile on, glow plug light intermittent flash. Perform guided fault finding, faults tored P00AF. Turbocharger boost performance visual inspection found vacuum hoses good. Following test plan, check n75 solenoid good. Check wiring to g581 ref volt good. Perform gff function test vacuum diaphram good. Function test n75 good. Vacuum at 9psi. Check internal resistance at boost actuator position sensor out of spec. Rec replace g581 charge pressure actuator position sensor (within turbo assembly)... Parts will need to be special ordered $1,444.41 + tax...
POWER TRAIN, FUEL/PROPULSION SYSTEM ENGINE ENGINE FUEL/PROPULSION SYSTEM POWER TRAIN