P01B7

Symptoms

• Unstable engine operation
• Increased fuel consumption
• Power reduction
• Check Engine Light Illuminates
• It is possible to block the use of alternative fuels

Causes

• Open or short circuit in the sensor wiring harness
• Malfunction of the fuel rail temperature sensor itself
• Poor contacts or corrosion in connectors
• Problems with the engine control unit
• Mechanical damage to the fuel rail

How to Fix

1. Visually inspect the wiring harness and connectors for damage
2. Checking the sensor resistance and comparing with nominal values
3. Checking the supply voltage and signal circuit
4. Diagnosis of sensor readings via a diagnostic scanner
5. If necessary, replace the sensor or repair damaged wires

Related codes

Error P01B7 by Vehicle Brand