OBD Guide

P145C

Fuel Tank Pressure Sensor Range/Performance Problem

P145C is an OBD-II diagnostic trouble code meaning: Fuel Tank Pressure Sensor Range/Performance Problem. Common causes: fuel tank pressure sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Increased fuel consumption
  • Problems starting the engine
  • Unstable engine idling
  • The smell of fuel in the car interior

Causes

  • Fuel tank pressure sensor malfunction
  • Open or short circuit in the sensor circuit
  • Problems with the sensor wiring harness
  • Clogged or damaged EVAP system lines
  • EVAP purge valve malfunction

How to Fix

  1. Check the continuity of the pressure sensor circuit
  2. Check connections and sensor wiring harness
  3. Check the functionality of the pressure sensor
  4. Replace the fuel tank pressure sensor if necessary
  5. Check the EVAP system for leaks

Related codes

FAQ

What does the P145C code mean?

P145C is an OBD-II diagnostic trouble code that indicates: Fuel Tank Pressure Sensor Range/Performance Problem

What causes a P145C error code?

The most common causes of P145C include: Fuel tank pressure sensor malfunction; Open or short circuit in the sensor circuit; Problems with the sensor wiring harness; Clogged or damaged EVAP system lines.

How do I fix a P145C diagnostic trouble code?

To fix P145C: Check the continuity of the pressure sensor circuit. Check connections and sensor wiring harness. Check the functionality of the pressure sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P145C?

Yes, but get it checked soon

How much does it cost to fix P145C?

The estimated repair cost for P145C is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat