OBD Guide

P1292

Compressed Natural Gas Pressure Sensor Signal Too High

P1292 is an OBD-II diagnostic trouble code meaning: Compressed Natural Gas Pressure Sensor Signal Too High. Common causes: cng pressure sensor malfunction, damage to the sensor wiring harness. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Unstable operation of the engine on gas
  • Reduced engine power
  • Increased fuel consumption
  • Check Engine light comes on
  • Switching to petrol when running on gas

Causes

  • CNG pressure sensor malfunction
  • Damage to the sensor wiring harness
  • Problems with the sensor electrical circuit
  • Mechanical damage to the sensor
  • ECU malfunction

How to Fix

  1. Check the electrical circuit of the CNG pressure sensor
  2. Check the condition of the sensor wiring harness
  3. Check the functionality of the CNG pressure sensor
  4. Replace CNG pressure sensor if necessary
  5. Check and update the ECU firmware

Related codes

Error P1292 by Vehicle Brand

FAQ

What does the P1292 code mean?

P1292 is an OBD-II diagnostic trouble code that indicates: Compressed Natural Gas Pressure Sensor Signal Too High

What causes a P1292 error code?

The most common causes of P1292 include: CNG pressure sensor malfunction; Damage to the sensor wiring harness; Problems with the sensor electrical circuit; Mechanical damage to the sensor.

How do I fix a P1292 diagnostic trouble code?

To fix P1292: Check the electrical circuit of the CNG pressure sensor. Check the condition of the sensor wiring harness. Check the functionality of the CNG pressure sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1292?

Yes, but get it checked soon

How much does it cost to fix P1292?

The estimated repair cost for P1292 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

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