Powertrain
generic / SAE
P2EAE
Reductant Injection Valve Circuit Range/Performance Bank 1 Unit 2
The reductant injection valve on bank 1 unit 2 reports a range/performance fault. Dosing accuracy on this unit is impaired.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberE / AE
Possible causes
- Injection valve partially clogged high
- Coil resistance drifted medium
- Sensor element aged beyond calibration window low
Symptoms
- Check engine light or NOx warning on
- AdBlue/DEF level or quality warning
- Possible no-start countdown after ignore period
- Failed emissions inspection (NOx)
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–1200 €
- Estimated time: 1–5 h
- Component: reductant injection valve b1 u2
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012