Engine-Codes - Pontiac - P1154 PONTIAC

P1154 PONTIAC - HO2S Transition Time Ratio Bank 2 Sensor 1

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1154 PONTIAC Possible Causes

  • Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
  • Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 harness is open or shorted
  • Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 circuit poor electrical connection

How is the P1154 PONTIAC code repair?

Start by checking 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's pins.

What is the cost to diagnose the P1154 PONTIAC code

Labor: 1.0

The cost to diagnose the P1154 PONTIAC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

When is the code detected?

The P1154 code sets if the HO2S ratio is not within range.

Possible Symptoms

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

P1154 PONTIAC Meaning

The Powertrain Control Module (PCM) continuously monitors the Heated Oxygen Sensor (HO2S) activity for 100 seconds. 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.

More Information

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