AutoCodes – Ford – P1137 1998 Ford F150

P1137 1998 Ford F150 Code - Lack Of Heated Oxygen Sensor Switches Bank 1 Sensor 2 Switch Indicates Lean

Quick Answer

The Heated Oxygen Sensor 2 (HO2S2) (Downstream), after the three-way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. Common causes include Exhaust gas leaks, Faulty Heated Oxygen Sensor 2 (HO2S2) (Downstream) Bank 1, Heated Oxygen Sensor 2 Bank 1 harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1137 1998 Ford F150 indicates Lack Of Heated Oxygen Sensor Switches Bank 1 Sensor 2 Switch Indicates Lean.
Common causes: Common causes include Exhaust gas leaks, Faulty Heated Oxygen Sensor 2 (HO2S2) (Downstream) Bank 1, Heated Oxygen Sensor 2 Bank 1 harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 2,784

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1137 1998 Ford F150 Description

The Heated Oxygen Sensor 2 (HO2S2) (Downstream), after the three-way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air-fuel mixture (air-fuel ratio) must maintain near the ideal stoichiometric ratio. The HO2S2 output voltage changes suddenly in the vicinity of the stoichiometric ratio. The Powertrain Control Module (PCM) adjusts the fuel injection time so that the air-fuel ratio is nearly stoichiometric. The HO2S2 generates a voltage between 0.1 and 0.9 V in response to oxygen in the exhaust gas. If the oxygen in the exhaust gas increases, the air-fuel ratio becomes Lean. The PCM interprets Lean when the HO2S2 voltage is below 0.45 V. If the oxygen in the exhaust gas decreases, the air-fuel ratio becomes Rich. The PCM interprets Rich when the HO2S2 voltage is above 0.45 V. The P1137 code will set when the PCM detects that the HO2S2 signal is below the voltage of range for an extended period.

OBDII Code P1137 1998 Ford F150 - Lack Of Heated Oxygen Sensor Switches Bank 1 Sensor 2 Switch Indicates Lean - AutoCodes.com — P1137 1998 Ford F150 Code - Lack Of Heated Oxygen Sensor Switches Bank 1 Sensor 2 Switch Indicates Lean

What does this mean?

What are the Possible Causes of the DTC P1137 1998 Ford F150?

Exhaust gas leaks
Faulty Heated Oxygen Sensor 2 (HO2S2) (Downstream) Bank 1
Heated Oxygen Sensor 2 Bank 1 harness is open or shorted
Heated Oxygen Sensor 2 Bank 1 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors

How to Fix the DTC P1137 1998 Ford F150?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1137 1998 Ford F150 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1137 1998 Ford F150 code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1137 1998 Ford F150 Code

1. What are the common symptoms of OBDII code P1137 on a 1998 Ford F150?

- Common symptoms include poor fuel economy, rough idling, hesitation during acceleration, and the illumination of the check engine light.

2. What does the OBDII code P1137 indicate on a 1998 Ford F150?

- The code indicates a lack of activity from the heated oxygen sensor for Bank 1 Sensor 2, suggesting a lean air-fuel mixture.

3. What are possible causes of the P1137 code on a 1998 Ford F150?

- Potential causes include a faulty heated oxygen sensor, vacuum leaks, a clogged fuel filter, exhaust system leaks, or issues with the fuel injectors.

4. How can I diagnose the P1137 code on my 1998 Ford F150?

- Diagnose the code by checking the heated oxygen sensor's wiring, inspecting for any vacuum leaks, and performing a fuel pressure test to identify potential issues.

5. Can I continue driving my 1998 Ford F150 with the P1137 code?

- It is not recommended to continue driving with the P1137 code as it can lead to further engine damage and reduced fuel efficiency.

6. How do I repair the P1137 code on my 1998 Ford F150?

- Repair options include replacing the heated oxygen sensor, fixing any vacuum leaks, addressing fuel system issues, and clearing the code with an OBDII scanner.

7. Is it possible to reset the P1137 code on a 1998 Ford F150 without fixing the underlying issue?

- While you can clear the code temporarily with a scanner, it will likely return if the root cause is not addressed.

8. Can a DIY enthusiast fix the P1137 code on a 1998 Ford F150?

- Depending on the DIYer's skill level and tools available, some repairs like replacing the heated oxygen sensor can be done at home. However, complex issues may require professional assistance.

9. How long does it typically take to repair the P1137 code on a 1998 Ford F150?

- The repair time can vary based on the specific issue causing the code. Simple fixes like replacing the oxygen sensor may take an hour or two, while more complex issues could require more time.

10. Will fixing the P1137 code improve the performance of my 1998 Ford F150?

- Yes, resolving the P1137 code should improve fuel efficiency, engine performance, and overall drivability of the vehicle.