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P0371moderate severityPowertrain

Timing Reference High Resolution Signal A Too Many Pulses

on 2008 Dodge Viper 8.4L V10 · RWD

What this code means

The PCM received more high resolution timing pulses than expected on signal A. This often indicates electrical noise or a damaged tone ring.

Symptoms

  • Check engine light on
  • Rough running
  • Timing-related performance issues

Common causes

  • Damaged reluctor/tone ring
  • Electrical interference or noise
  • Faulty timing sensor
  • Wiring fault

Diagnostic steps

  1. Scan for codes and freeze frame
  2. Inspect tone ring for damage or debris
  3. Check wiring for noise sources
  4. Test and replace sensor if needed

Other Powertrain codes on this vehicle

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