P008B
Low Pressure Fuel System Pressure - Too High
P008B is an OBD-II diagnostic trouble code meaning: Low Pressure Fuel System Pressure - Too High. Common causes: fuel pressure regulator malfunction, clogged fuel lines. Estimated repair cost: $56–167.
Symptoms
- Loss of engine power
- Unstable idling
- Increased fuel consumption
- Difficulty starting the engine
Causes
- Fuel pressure regulator malfunction
- Clogged fuel lines
- Problems with the low pressure fuel pump
- Fuel pressure sensor malfunction
- Damage to the fuel system wiring harness
How to Fix
- Check the pressure in the low pressure fuel system using a pressure gauge
- Inspect fuel lines for blockages or damage
- Check the operation of the fuel pressure regulator
- Diagnose the low pressure fuel pump
- Check the fuel pressure sensor and its wiring harness
- If necessary, replace faulty components
Related codes
Error P008B by Vehicle Brand
FAQ
What does the P008B code mean?
P008B is an OBD-II diagnostic trouble code that indicates: Low Pressure Fuel System Pressure - Too High
What causes a P008B error code?
The most common causes of P008B include: Fuel pressure regulator malfunction; Clogged fuel lines; Problems with the low pressure fuel pump; Fuel pressure sensor malfunction.
How do I fix a P008B diagnostic trouble code?
To fix P008B: Check the pressure in the low pressure fuel system using a pressure gauge. Inspect fuel lines for blockages or damage. Check the operation of the fuel pressure regulator. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P008B?
Limited driving only, diagnose soon
How much does it cost to fix P008B?
The estimated repair cost for P008B is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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