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P0008

P0008 - No signal on both crankshaft and camshaft speed sensor

Bosch · ECU Troubleshooting

What does P0008 mean?

Neither the crankshaft nor the camshaft position sensor is providing a signal. This prevents the engine from starting.

Common Causes

  • Complete failure of both sensors
  • Major wiring harness issue affecting both sensors
  • ECU power supply problem

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the main power supply to the ECU.

  2. 2

    Inspect the wiring harnesses for both the crankshaft and camshaft sensors.

  3. 3

    If power and wiring are intact, both sensors may have failed, or the ECU is at fault.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

ECU internal faultECU internal fault - Electronic Control Unit internal errorP0122P0122 - Accelerator sensor 1 error (voltage low)P0123P0123 - Accelerator sensor 1 error (voltage high)
Source: Bosch ECU Troubleshooting
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