OBD Guide

P01A6

Alternative Fuel Rail Pressure Sensor Circuit High

P01A6 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Rail Pressure Sensor Circuit High. Common causes: fuel rail pressure sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Illuminates

Causes

  • Fuel rail pressure sensor malfunction
  • Open or short circuit in wiring harness
  • Problems with the fuel pump
  • ECU malfunction

How to Fix

  1. Check the fuel rail pressure sensor for damage.
  2. Check the integrity of the wiring harness and connections
  3. Check the operation of the fuel pump
  4. If necessary, replace the sensor or wiring harness
  5. Reset the error and check if it returns

Related codes

Error P01A6 by Vehicle Brand

FAQ

What does the P01A6 code mean?

P01A6 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Rail Pressure Sensor Circuit High

What causes a P01A6 error code?

The most common causes of P01A6 include: Fuel rail pressure sensor malfunction; Open or short circuit in wiring harness; Problems with the fuel pump; ECU malfunction.

How do I fix a P01A6 diagnostic trouble code?

To fix P01A6: Check the fuel rail pressure sensor for damage.. Check the integrity of the wiring harness and connections. Check the operation of the fuel pump. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P01A6?

Limited driving only, diagnose soon

How much does it cost to fix P01A6?

The estimated repair cost for P01A6 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat