P2ABAWastegate Position Sensor B Circuit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2ABA covers a general circuit fault of the position sensor on the wastegate of turbocharger B, so it can only occur on engines with two turbos and electric wastegates: on a parallel layout the turbo of bank 2, on a series layout the second one downstream. Ford uses it on twin-turbo EcoBoost V6 engines. TSB 22-2357 reprograms 2021-22 F-150 2.7L trucks that log P2ABA, P2ABC, P2AB7 or P2AB9 because of software parameters; TSB 23-2353 and the later SSM 54083 cover 2020-23 Explorer, 2022-23 F-150 and 2023-24 Expedition/Navigator, first with a software update and then with the workshop manual pinpoint tests. No limit is published for this general code. CARB lists wastegate valve position among the data items an OBD system must report. Low/high are P2ABB/P2ABC.
- What you may notice
- Check engine light, on Ford also the powertrain (wrench) indicator
- Reduced power, boost limited
- Likely causes
- LikelyPCM calibration that sets the code falsely (Ford reflash for listed models)
- PossibleDamaged harness or connector at the bank 2 turbocharger
- RareElectric wastegate actuator B with its built-in position sensor failed
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.