P01B7
Alternative Fuel Rail Temperature Sensor Circuit High
P01B7 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Rail Temperature Sensor Circuit High. Common causes: open or short circuit in the sensor wiring harness, malfunction of the fuel rail temperature sensor itself. Estimated repair cost: $11–89.
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
- Visually inspect the wiring harness and connectors for damage
- Checking the sensor resistance and comparing with nominal values
- Checking the supply voltage and signal circuit
- Diagnosis of sensor readings via a diagnostic scanner
- If necessary, replace the sensor or repair damaged wires
Related codes
Error P01B7 by Vehicle Brand
FAQ
What does the P01B7 code mean?
P01B7 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Rail Temperature Sensor Circuit High
What causes a P01B7 error code?
The most common causes of P01B7 include: 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.
How do I fix a P01B7 diagnostic trouble code?
To fix P01B7: Visually inspect the wiring harness and connectors for damage. Checking the sensor resistance and comparing with nominal values. Checking the supply voltage and signal circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P01B7?
Limited driving only, diagnose soon
How much does it cost to fix P01B7?
The estimated repair cost for P01B7 is $11–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat