Engine-Codes - Chevrolet - P1134 Chevrolet

P1134 Chevrolet Code - HO2S Transition Time Ratio Bank 1 Sensor 1

- Code Popularity: 26,909 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P1134 Chevrolet?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty HO2S Bank 1 Sensor 1
  • HO2S Bank 1 Sensor 1 harness is open or shorted
  • HO2S Bank 1 Sensor 1 circuit poor electrical connection
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How to Fix the DTC P1134 Chevrolet?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1134 Chevrolet code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

The P1134 is sets if the Powertrain Control Module (PCM) detects the HO2S ratio is not within range.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P1134 Chevrolet Code Mean?

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity. During the monitor period the PCM counts the number of times that the HO2S responds from rich to lean and from lean to rich and adds the amount of time it took to complete all transitions. With this information, an average time for all transitions can be determined. The PCM then divides the rich to lean average by the lean to rich average to obtain a ratio.

P1134 Chevrolet Code - HO2S Transition Time Ratio Bank 1 Sensor 1

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