OBD Guide

P1197

Exhaust Gas Temperature Sensor 4 Performance Engine Running

P1197 is an OBD-II diagnostic trouble code meaning: Exhaust Gas Temperature Sensor 4 Performance Engine Running. Common causes: egt 4 temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine operation at idle
  • Exhaust system overheating

Causes

  • EGT 4 temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Contact corrosion
  • Engine control unit malfunction

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect connectors and contacts for corrosion
  3. Check the resistance of the EGT sensor
  4. Replace faulty EGT temperature sensor
  5. Reset the error code and check the system operation

Related codes

Error P1197 by Vehicle Brand

FAQ

What does the P1197 code mean?

P1197 is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Temperature Sensor 4 Performance Engine Running

What causes a P1197 error code?

The most common causes of P1197 include: EGT 4 temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Contact corrosion.

How do I fix a P1197 diagnostic trouble code?

To fix P1197: Check the integrity of the sensor circuit. Inspect connectors and contacts for corrosion. Check the resistance of the EGT sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1197?

Yes, but get it checked soon

How much does it cost to fix P1197?

The estimated repair cost for P1197 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

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