P0376moderate severityPowertrain
Timing Reference High Resolution Signal B Too Many Pulses
on 2002 Audi A6 3.0L V6 · AWD
What this code means
The PCM received more high resolution timing pulses than expected on signal B. This often points to electrical noise or a damaged tone ring.
Symptoms
- Check engine light on
- Rough running
- Timing performance issues
Common causes
- Damaged tone ring
- Electrical interference
- Faulty timing sensor
- Wiring fault
Diagnostic steps
- Scan for codes and freeze frame
- Inspect tone ring for damage
- Check wiring for noise
- Test and replace sensor if needed
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