P25E2 code meaning
"A" Camshaft Position Control Performance (Bank 2)
Powertrain system Generic code P25xx codes Check engine light
What P25E2 means
P25E2 points to poor position control of the bank 2 intake camshaft actuator: the measured angle tracks its target less accurately or with more oscillation than the calibration allows, while no clear lock fault is present. It is the bank 2 sibling of P25DF. No manufacturer publishes its trigger, so it remains unclear how it is separated from P0021 (bank 2 over-advanced or system performance) or the slow response code P000C; when one of those is stored too, it usually guides the diagnosis. CARB 13 CCR 1968.2 wants every VVT system checked for missed setpoints and for being too slow. In hydraulic phasers of the mid-lock type, as BorgWarner supplies for the Hyundai Gamma II, contaminated oil, a weak solenoid valve or internal leakage reduce control precision. Symptoms tend to be mild: unsteady idle and lower efficiency.
P25E2 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 5 hours
- Clears after repairAfter a drive cycle
Symptoms of P25E2
- Check engine lamp on
- Slightly unsteady idle
- Lower fuel economy
Common causes of P25E2
- Most likelyBank 2 intake solenoid valve worn or sluggish
- PossibleContaminated or overdue engine oil
- Less likelyInternal leakage across the phaser vanes
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Cam phaser a b2Oil control valveCam position sensor
What each part of P25E2 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 5 | Area: vehicle speed, idle control and auxiliary inputs. |
| E2 | The exact fault in that area. |
What to do next
- Note P25E2 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P25E2
What does P25E2 mean?
P25E2 means ""A" Camshaft Position Control Performance (Bank 2)". P25E2 points to poor position control of the bank 2 intake camshaft actuator: the measured angle tracks its target less accurately or with more oscillation than the calibration allows, while no clear lock fault is present. It is a generic code, so it means the same on every make.
Is it safe to drive with P25E2?
Drive gently and only to a workshop. With P25E2 the car can go into limp mode (reduced power) to protect itself.
Will P25E2 fail an emissions test?
Yes, it can. P25E2 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P25E2 to fix?
Difficulty: medium. A typical repair takes 0.5 to 5 hours of work. This is a job for a workshop.
Will P25E2 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.