P2008moderate severityPowertrain
Intake Manifold Runner Control Circuit Open Bank 1
on 1998 Audi A8 3.7L V8 · AWD
What this code means
Open circuit detected in the intake manifold runner control actuator circuit on bank 1.
Symptoms
- Check engine light
- Reduced performance
- Poor fuel economy
Common causes
- Broken wiring
- Corroded connector
- Failed actuator
- Blown fuse
Diagnostic steps
- Check fuse and relay
- Inspect wiring and connector
- Test actuator resistance
- Check ECM output
Repair notes
Repair wiring or replace actuator.
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