AutoCodes – Ford – P0188 1997 Ford F150

P0188 1997 Ford F150 Code - Engine Fuel Temperature Sensor B Circuit High Input

Quick Answer

The comprehensive component monitor (CCM) monitors the Engine Fuel Temperature (EFT) Sensor circuit to the Powertrain Control Module (PCM) for low and high voltage. Common causes include Faulty Engine Fuel Temperature Sensor, Engine Fuel Temperature Sensor harness is open or shorted, Engine Fuel Temperature Sensor circuit poor electrical connection. 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
P0188 1997 Ford F150 indicates Engine Fuel Temperature Sensor B Circuit High Input.
Common causes
Common causes include Faulty Engine Fuel Temperature Sensor, Engine Fuel Temperature Sensor harness is open or shorted, Engine Fuel Temperature Sensor circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,880
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0188 1997 Ford F150 Description

The comprehensive component monitor (CCM) monitors the Engine Fuel Temperature (EFT) Sensor circuit to the Powertrain Control Module (PCM) for low and high voltage. If voltage were to fall below or exceed a calibrated limit and amount of time during testing, the test will fail. Open or short in harness. Low ambient temperature operation.
OBDII Code P0188 1997 Ford F150 - Engine Fuel Temperature Sensor B Circuit High Input - AutoCodes.com
P0188 1997 Ford F150 Code - Engine Fuel Temperature Sensor B Circuit High Input

What are the Possible Causes of the DTC P0188 1997 Ford F150?

  • Faulty Engine Fuel Temperature Sensor
  • Engine Fuel Temperature Sensor harness is open or shorted
  • Engine Fuel Temperature Sensor circuit poor electrical connection

How to Fix the DTC P0188 1997 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0188 1997 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 P0188 1997 Ford F150 code?

Need more information on how to fix the P0188 1997 Ford F150 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0188 1997 Ford F150 code diagnosed by a professional: Find a repair shop in your area

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 P0188 1997 Ford F150 Code

1. What are the common symptoms of OBDII code P0188 on a 1997 Ford F150?

- Common symptoms include poor fuel economy, engine misfires, rough idling, and a decrease in overall engine performance.

2. What does the Engine Fuel Temperature Sensor B Circuit High Input mean for a 1997 Ford F150?

- This code indicates that the fuel temperature sensor circuit is detecting a higher than normal input signal, which can affect the engine's fuel mixture and performance.

3. What are the possible causes of OBDII code P0188 on a 1997 Ford F150?

- Possible causes include a faulty fuel temperature sensor, damaged wiring or connectors in the sensor circuit, a problem with the Engine Control Module (ECM), or issues with the fuel system.

4. How can I diagnose the Engine Fuel Temperature Sensor B Circuit High Input on my 1997 Ford F150?

- Diagnose the issue by checking the sensor for proper resistance, inspecting the wiring and connectors for damage, and using a scan tool to monitor the sensor's data readings.

5. Can I drive my 1997 Ford F150 with OBDII code P0188?

- It is not recommended to drive with this code active, as it can lead to further engine damage and poor fuel efficiency. It's best to address the issue promptly.

6. How can I repair OBDII code P0188 on my 1997 Ford F150?

- Repair options include replacing the fuel temperature sensor, repairing any damaged wiring or connectors, resetting the ECM, and clearing the code with a scan tool.

7. Will resetting the check engine light fix OBDII code P0188 on a 1997 Ford F150?

- Resetting the check engine light may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear. It's important to diagnose and repair the problem.

8. Can a DIY enthusiast fix OBDII code P0188 on a 1997 Ford F150?

- Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to diagnose and repair this code. However, it's recommended to consult a professional if unsure.

9. Is OBDII code P0188 a common issue on 1997 Ford F150 trucks?

- While not as common as some other OBDII codes, P0188 can still occur on 1997 Ford F150 trucks, especially as the vehicle ages and components wear out.

10. How much does it cost to fix OBDII code P0188 on a 1997 Ford F150?

- The cost of fixing this code can vary depending on the cause of the issue, the labor rates in your area, and whether you choose to DIY or have a professional mechanic perform the repairs.

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