P25E8"B" Camshaft Position Control Performance (Bank 2)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P25E8 is the last code of the locked-position block and covers the control quality of the bank 2 exhaust camshaft actuator: the module sees the angle wander from, overshoot or trail its setpoint more than allowed, while lock-related faults are absent. Older codes such as P0024 and P000D describe similar exhaust deviations on bank 2; which one a given calibration uses is not documented publicly by any manufacturer, so P25E8 should be read together with any accompanying cam codes and live phaser data. CARB 13 CCR 1968.2 demands that any VVT system be watched for wrong angles and sluggish travel. In hydraulic phasers like BorgWarner's torsional-assist units, oil viscosity, filter condition and wear in the valve or rotor seals decide how well the angle holds. Symptoms are usually subtle, such as uneven idle or higher fuel use.
- What you may notice
- Check engine lamp on
- Uneven idle
- Higher fuel use
- Likely causes
- LikelyWear in the bank 2 exhaust control valve
- PossibleWrong oil viscosity or a clogged oil filter
- RareWorn rotor seals inside the exhaust phaser
- 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: €80 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.