Powertrain
generic / SAE
P0487
EGR Throttle Control Circuit A/Open
The drive circuit of EGR throttle A is open. EGR throttles partially close intake to increase exhaust gas recirculation flow at low loads.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / 87
Possible causes
- Actuator winding open high
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: 120–900 €
- Estimated time: 0.7–3 h
- Component: egr throttle a
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012