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P0050low severityPowertrain

HO2S Heater Control Circuit Bank 2 Sensor 1

on 2008 Dodge Viper 8.4L V10 · RWD

What this code means

The PCM detected a malfunction in the heater circuit of the upstream O2 sensor on Bank 2.

Symptoms

  • Check Engine Light
  • Poor fuel economy
  • Longer warmup emissions

Common causes

  • Faulty O2 sensor heater
  • Blown fuse
  • Wiring damage

Diagnostic steps

  1. Check fuse
  2. Test heater resistance
  3. Inspect wiring
  4. Test PCM output

Repair notes

Replace O2 sensor or repair wiring.

Other Powertrain codes on this vehicle

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