AutoCodes – Ford – P0068 1997 Ford F150

P0068 1997 Ford F150 Code - Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation

Quick Answer

The Powertrain Control Module (PCM) monitors a vehicle operation rationality check by comparing Throttle Position (TP) to Mass Air Flow (MAF) readings. Common causes include Faulty Mass Air Flow (MAF) sensor, Large vacuum leak, Leaking air duct system. 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: P0068 1997 Ford F150 indicates Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation.
Common causes: Common causes include Faulty Mass Air Flow (MAF) sensor, Large vacuum leak, Leaking air duct system.
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 4,963

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 Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0068 1997 Ford F150 Description

The Powertrain Control Module (PCM) monitors a vehicle operation rationality check by comparing Throttle Position (TP) to Mass Air Flow (MAF) readings. If, during a self-test, the comparison of the TP sensor and MAF sensor readings are not consistent with the calibrated load values, the test fails and a diagnostic trouble code is stored in continuous memory.

OBDII Code P0068 1997 Ford F150 - Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation - AutoCodes.com — P0068 1997 Ford F150 Code - Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation

What does this mean?

What are the Possible Causes of the DTC P0068 1997 Ford F150?

Faulty Mass Air Flow (MAF) sensor
Large vacuum leak
Leaking air duct system
Mass Air Flow (MAF) poor electrical connection
Manifold Absolute Pressure (MAP) poor electrical connection
Faulty Manifold Absolute Pressure (MAP) sensor
TP sensor not seated properly
Faulty Throttle Position (TP) sensor

How to Fix the DTC P0068 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.

What does this mean?

Code Tech Notes

Drive vehicle and exercise throttle and TP sensor in all gears. A TPNS PID less than 4.82% (0.24 volt) with a LOAD PID greater than 55% or a TPB V PID greater than 49.06% (2.44 volts) with a LOAD PID less than 30% indicates a hard fault

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0068 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.

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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 P0068 1997 Ford F150 Code

1. What are common symptoms of OBDII code P0068 in a 1997 Ford F150?

- Common symptoms include poor engine performance, rough idling, stalling, and a decrease in fuel efficiency.

2. What does the OBDII code P0068 indicate in a 1997 Ford F150?

- The code P0068 indicates a potential issue with the correlation between the Manifold Absolute Pressure (MAP) sensor, Mass Air Flow (MAF) sensor, and Throttle Position Sensor (TPS).

3. What are possible causes of OBDII code P0068 in a 1997 Ford F150?

- Possible causes include a faulty MAP sensor, MAF sensor, TPS, wiring issues, vacuum leaks, or a problem with the intake system.

4. How can I diagnose OBDII code P0068 in my 1997 Ford F150?

- Diagnosing code P0068 may involve checking the MAP sensor, MAF sensor, TPS, and their connections for any signs of damage or malfunction. A professional diagnostic scan tool may also be used to pinpoint the issue.

5. Can I drive my 1997 Ford F150 with OBDII code P0068?

- It is not recommended to drive your vehicle with code P0068 as it can lead to further damage and potential safety hazards. It is best to address the issue promptly.

6. How can I repair OBDII code P0068 in a 1997 Ford F150?

- Repairing code P0068 may involve replacing the faulty MAP sensor, MAF sensor, TPS, or repairing any damaged wiring or vacuum leaks. It is recommended to consult a professional mechanic for proper diagnosis and repair.

7. Will resetting the OBDII code P0068 in my 1997 Ford F150 fix the issue?

- Simply resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing code P0068. Proper diagnosis and repair are necessary.

8. Are there any DIY tips for troubleshooting OBDII code P0068 in a 1997 Ford F150?

- You can visually inspect the sensors and their connections for any visible damage or loose connections. Checking for vacuum leaks and ensuring the intake system is intact can also help in troubleshooting.

9. How much does it typically cost to repair OBDII code P0068 in a 1997 Ford F150?

- The cost of repairing code P0068 can vary depending on the specific cause of the issue, the parts needed for replacement, and the labor rates of the repair shop. It is advisable to obtain quotes from multiple mechanics.

10. Can a bad throttle position sensor trigger OBDII code P0068 in a 1997 Ford F150?

- Yes, a malfunctioning throttle position sensor can contribute to triggering code P0068 as it plays a crucial role in the correlation between the MAP sensor, MAF sensor, and throttle position.