Powertrain, generic · Fuel and air metering, auxiliary emission controls
P00BA Low Fuel Pressure - Forced Limited Power
Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible
"Forced limited power" is a term for a protective strategy in which the engine control module deliberately limits engine power. Regulations require the check engine light to come on within seconds when such an emissions-relevant limp-home mode is active. These codes report the reason for the limitation; usually further codes point to the actual cause. No manufacturer description naming this exact code was found. P00BA: power has been limited because fuel pressure is too low, which protects the engine and the pump against running lean or losing rail pressure.
Likely causes
Fuel filter clogged, suction-side leak or air in the system
Lift pump or high-pressure pump weak
Pressure regulator or relief valve leaking
Tank run empty
Pressure sensor faulty
Symptoms
- Check engine light on
- Marked loss of power, limp mode
- Hard starting or jerking
Repair estimate
DifficultyHardWorkshop job
Parts and labour€50–1,500
Time0.5–4 h
Typical range across vehicles; the real cost depends on what the testing finds.
Parts involved
fuel filterlow pressure fuel pumphigh pressure fuel pumpfuel pressure regulator
Related codes
References: law.cornell.edu, newtonnet.co.uk.