Powertrain
generic / SAE
P2D2D
Cold Start Intake Manifold Runner Performance Bank 1
During cold start, the intake manifold runner control on bank 1 does not produce the expected tumble/swirl effect. Linkage stiff, actuator sluggish, or runner alignment off.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberD / 2D
Possible causes
- Actuator response sluggish at cold high
- Linkage iced or stiff medium
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–1000 €
- Estimated time: 1–4 h
- Component: imrc actuator b1
- Component: intake manifold runners
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012