Powertrain
generic / SAE
P23E1
EGR C Control Circuit Open
A general open-circuit fault on the third EGR valve C control - typically a third EGR loop in heavy-duty engines or specific Euro-7 systems.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number3 / E1
Possible causes
- Open in valve or wiring high
- Pin pushed back out of connector body low
- Cracked solder joint inside the module or sensor low
Symptoms
- Check engine light on
- Pinging or knocking under load
- Power loss and hesitation
- Possible rough idle
- Failed emissions inspection (NOx)
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–800 €
- Estimated time: 1–3 h
- Component: egr valve c
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012