OBD Guide
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P118F

Exhaust Gas Temperature Sensor 2 Performance Engine Running

P118F is an OBD-II diagnostic trouble code meaning: Exhaust Gas Temperature Sensor 2 Performance Engine Running. Common causes: exhaust temperature sensor 2 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 comes on
  • Reduced engine power
  • Increased fuel consumption
  • Rough engine operation
  • Dips during acceleration

Causes

  • Exhaust temperature sensor 2 malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Problems with the engine ECU

How to Fix

  1. Check the condition of exhaust temperature sensor 2
  2. Check the integrity of the sensor circuit and connectors
  3. Measure sensor resistance
  4. Check the reference voltage at the sensor
  5. Replace the faulty sensor if necessary

Related codes

P118EP1190P1191

FAQ

What does the P118F code mean?

P118F is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Temperature Sensor 2 Performance Engine Running

What causes a P118F error code?

The most common causes of P118F include: Exhaust temperature sensor 2 malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.

How do I fix a P118F diagnostic trouble code?

To fix P118F: Check the condition of exhaust temperature sensor 2. Check the integrity of the sensor circuit and connectors. Measure sensor resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P118F?

Yes, but get it checked soon

How much does it cost to fix P118F?

The estimated repair cost for P118F is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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