Engine Error
P0088
Fuel Rail/System Pressure - Too High
Severity
High
Symptoms
Black smoke from exhaust, strong fuel smell, engine misfires
Common Causes
- Faulty fuel pressure regulator
- Kinked or restricted fuel return line
- Defective fuel rail pressure sensor
- Failed high-pressure fuel pump (direct injection)
How to Fix
- 1 Test and replace fuel pressure regulator
- 2 Inspect and repair fuel return lines
- 3 Replace fuel rail pressure sensor
- 4 Replace high-pressure fuel pump
Estimated Repair Cost
USD
$100
–
$1200
Regulator: $150 - $350; HPFP replacement: $600 - $1,200