Fuel Rail/System Pressure - Too High
2018-2025 Fiat Cronos 1.3L I4 Flex Firefly
Description
The fuel rail pressure is higher than the PCM commanded value.
Symptoms
- Check Engine Light
- Hard starting
- Rich running
- Injector damage risk
- Black exhaust smoke
Common Causes
- Faulty fuel pressure regulator
- Restricted fuel return line
- Stuck fuel pressure relief valve
Diagnostic Steps
- Monitor fuel pressure with scan tool
- Test fuel pressure regulator
- Check return line for restriction
- Inspect relief valve
Repair Notes
Replace fuel pressure regulator or clear fuel return restriction.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0088 on Other Vehicles
Fiat 124 Spider
2017-2020 1.4L I4 Turbo
Fiat 126p Maluch
1973-2000 0.65L I2 Air-Cooled
Fiat 126p Maluch
1987-2000 0.7L I2 Air-Cooled
Fiat 500
2012-2019 1.4L I4
Fiat 500 Abarth
2012-2019 1.4L I4 Turbo
Fiat 500 BR
2011-2020 1.4L I4 Flex Fire Evo
Fiat 500 PL
2007-2025 1.0L I3 Hybrid FireFly 70
Fiat 500 PL
2007-2025 1.2L I4 Fire 69
Common Questions
What does code P0088 mean on a 2018-2025 Fiat Cronos?
P0088 stands for "Fuel Rail/System Pressure - Too High". The fuel rail pressure is higher than the PCM commanded value.
What are the symptoms of P0088 on a Fiat Cronos?
Common symptoms of P0088 include: Check Engine Light, Hard starting, Rich running, Injector damage risk, Black exhaust smoke.
What causes P0088 on a 2018-2025 Fiat Cronos?
Common causes of P0088 include: Faulty fuel pressure regulator, Restricted fuel return line, Stuck fuel pressure relief valve.