OBD-II code · Powertrain (generic)
P049D EGR A Control Position Exceeded Learning Limit
EGR A Control Position Exceeded Learning Limit: the control module has detected this fault condition. Without valid EGR feedback the ECU disables exhaust gas recirculation and may set further EGR codes.
Is it safe to drive with P049D?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyHeavy carbon deposits on EGR A seat
- PossibleActuator gearing worn
Symptoms
- Check engine light on
- Pinging or knocking under load
- Power loss and hesitation
- Possible rough idle
- Failed emissions inspection (NOx)
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–4 h
- Emissions test
- Likely to fail
- Parts involved
- Egr Valve A, Egr Position Sensor A
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.