P208F Possible Causes
- Faulty reductant injection valve
- Reductant injection valve harness is open or shorted
- Poor electrical connection in reductant injection valve circuit
What Does It Mean?
How to Fix Code P208F
Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
P208F Possible Symptoms
Illuminated engine light (or service engine soon warning light)
P208F Meaning
The reductant dosing valve (reductant injection valve) is used to dose and atomize the reductant fluid before it mixes with the exhaust gases. The normal operating frequency ranges between 3 Hz and 0.3 Hz. The coolant body contains heat sink fins to maintain the injector and reductant below the boiling point. If the detected temperature approaches the maximum temperature threshold, the reductant spray will be increased in quantity to actively cool the valve.