P0068 Code - Throttle Position Sensor Inconsistent With The Mass Air Flow Sensor
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 indicates Throttle Position Sensor Inconsistent With The Mass Air Flow Sensor.
- 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.
Code P0068 Description
What are the Possible Causes of the DTC P0068?
- 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?
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 P0068 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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Information for Specific Makes
- P0068 Acura — Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
- P0068 Buick — Throttle Body Air Flow Performance
- P0068 Cadillac — Throttle Body Air Flow Performance
- P0068 Chevrolet — Throttle Body Air Flow Performance
- P0068 Chrysler — Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
- P0068 Dodge — Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
- P0068 Ford — Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
- P0068 GMC — Throttle Body Air Flow Performance
- P0068 Hyundai — MAP(MAF)-Throttle Position Sensor Correlation
- P0068 Jeep — Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
- P0068 KIA — Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
- P0068 Lincoln — Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
- P0068 Mercury — Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
- P0068 Mitsubishi — Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
- P0068 Pontiac — MAP/MAF - Throttle Position Correlation
- P0068 RAM — Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
- P0068 Saturn — MAP/MAF - Throttle Position Correlation
- P0068 Subaru — MAP/MAF - Throttle Position Correlation
- P0068 Volkswagen — Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation
- P0068 Volvo — Mass Air Flow / Throttle Position Correlation
Frequently Asked Questions about P0068 Code
What are the common symptoms of OBDII code P0068?
Common symptoms of OBDII code P0068, indicating Throttle Position Sensor Inconsistent With The Mass Air Flow Sensor, include poor engine performance, rough idling, stalling, decreased fuel efficiency, and difficulty accelerating.
What are the possible causes of OBDII code P0068?
The possible causes of OBDII code P0068 include a faulty throttle position sensor, a malfunctioning mass air flow sensor, wiring issues between the sensors and the engine control module, or a problem with the engine control module itself.
How can I diagnose OBDII code P0068?
Diagnosing OBDII code P0068 involves using an OBDII scanner to retrieve the code, checking the throttle position sensor and mass air flow sensor for proper operation, inspecting the wiring for any damage or loose connections, and testing the engine control module if necessary.
Can I drive my vehicle with OBDII code P0068?
It is not recommended to drive your vehicle with OBDII code P0068 present, as it can lead to further engine damage and potential safety hazards. It is best to address the issue promptly to avoid more severe problems.
How can I repair OBDII code P0068?
Repairing OBDII code P0068 involves replacing the faulty throttle position sensor or mass air flow sensor, repairing any damaged wiring, and resetting the engine control module to clear the code. It is recommended to follow the manufacturer's repair procedures.
Are there any DIY tips for fixing OBDII code P0068?
Some DIY tips for fixing OBDII code P0068 include checking and cleaning the sensors to ensure they are free of debris, inspecting the wiring for any visible damage, and making sure all connections are secure before attempting any sensor replacements or repairs.
Can a dirty air filter cause OBDII code P0068?
Yes, a dirty air filter can restrict airflow to the engine, affecting the readings of the mass air flow sensor and potentially triggering OBDII code P0068. It is recommended to regularly replace the air filter as part of routine maintenance to prevent such issues.
Is OBDII code P0068 a serious issue?
OBDII code P0068 should be addressed promptly to prevent further engine problems and maintain optimal vehicle performance. While it may not cause immediate danger, ignoring the issue can lead to decreased fuel efficiency, engine misfires, and other potential complications.
Discuss the causes and fixes for P0068 OBDII Code
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code p0068 on buick allure07 car starts okay but thensurges from 900 rpm to 1100 rpm then after 8-10 seconds surges to 1500 rpm & dies
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Hi there. I get code P0068 on 2003 Ford Explorer Sport xls 5spd. I've cleaned the throttle body, air filter, MAF sensor, and IAC valve and replaced the TPS. How can I effectively check for any leaks before finally giving in to mechanic's prices. Need to get smogged this year in California. Any advice would be greatly appreciated!
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