P208EReductant Injection Valve Stuck Closed (Bank 1 Unit 1)
- 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
- P208E says the first DEF dosing valve does not open although it is energised correctly. Valve movement shows in the coil current: when the armature lifts, the trace kinks. Ford's 2023 diesels judge every stroke and need 50 failures; the test pauses while P2047 to P2049 report a circuit fault. Volkswagen's 2014 Touareg TDI counts more than 50 missing signal peaks, Deutz EMR5 files it as P208E-73, raised by its BIP check that looks for the valve opening. Usually urea crystals block the nozzle. Under Ford SSM 48539 the dosing test is repeated up to three times against a 40 to 50 mL target before the valve, never the pump, is replaced; Mack and Volvo describe intermittent clogging checked by timed flow tests; GM PIP5662 (low cab forward) replaces valve and pump filter. NOx rises and inducement follows.
- What you may notice
- MIL and DEF dosing warning
- DEF consumption drops noticeably
- Derate or countdown to no-restart
- Likely causes
- LikelyUrea crystals blocking the dosing valve nozzle
- PossibleValve needle seized from deposits or heat
- RareContaminated fluid or debris from a dirty pump filter
- 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: €50 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.