OBD-II code · Powertrain (generic)
P01CA Fuel Rail Pressure Too Low - Engine Cranking Bank 2
Rail pressure on bank 2 fails to reach the start threshold during cranking. Hard or no-start.
Is it safe to drive with P01CA?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyHP pump worn
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–5 h
- Emissions test
- Likely to fail
- Parts involved
- High Pressure Fuel Pump, Lift Pump, Fuel Filter
Related codes
- P00C6Fuel Rail Pressure Too Low - Engine Cranking Bank 1
- P01C7Fuel Pressure Sensor A Circuit Intermittent/Erratic
- P01C8Fuel Rail/System Pressure - Too Low Bank 2
- P01C9Fuel Rail/System Pressure - Too High Bank 2
- P01CBCylinder 1 Injection Timing Performance - Over Retarded
- P01CCCylinder 1 Injection Timing Performance - Over Advanced
- P01CDCylinder 2 Injection Timing Performance - Over Retarded
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.