Gas leakage
â–¶ How to fix
- Check the supply to the rail pressure sensor - Check the pressure and compare with the sensed value - Check the pressure control valve - Check the gas line for leakage - Perform general troubleshooting of low pressure sensor
What you'll see
No driver-visible symptom recorded.
System reaction
- Engine runs and starts bad. - Engine may stop.
Diagnostic depth
Detection
- Gas pressure drops rapidly - mprrail_w < mrngcomp_w und clkngdr_w < CTRLKLRLHL
Possible cause
- Gasleakage at the CNG low-pressure-system