P0068 Pontiac Code - MAP/MAF - Throttle Position Correlation
Quick Answer
The Powertrain Control Module (PCM) uses the Throttle Position (TP), Barometric Pressure (BARO), Intake Air Temperature (IAT), and engine RPM in order to calculate the predicted mass airflow rate. Common causes include Air leak between the MAF sensor and throttle body, Dirty Throttle body or Mass Air Flow (MAF) sensor, Throttle Position (TP) sensor not seated properly. 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 Pontiac indicates MAP/MAF - Throttle Position Correlation.
- Common causes
- Common causes include Air leak between the MAF sensor and throttle body, Dirty Throttle body or Mass Air Flow (MAF) sensor, Throttle Position (TP) sensor not seated properly.
- 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 Pontiac Description
What are the Possible Causes of the DTC P0068 Pontiac?
- Air leak between the MAF sensor and throttle body
- Dirty Throttle body or Mass Air Flow (MAF) sensor
- Throttle Position (TP) sensor not seated properly
- Faulty Throttle Position (TP) sensor
- Faulty Mass Air Flow (MAF) sensor
How to Fix the DTC P0068 Pontiac?
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 Pontiac 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 P0068 Pontiac code?
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Frequently Asked Questions about P0068 Pontiac Code
1. What does the OBDII code P0068 on my Pontiac mean?
The P0068 code indicates a potential issue with the correlation between the MAP (Manifold Absolute Pressure) sensor, MAF (Mass Air Flow) sensor, and throttle position sensor.
2. What are the common symptoms of a P0068 code in a Pontiac?
Common symptoms include poor engine performance, rough idling, stalling, reduced fuel efficiency, and potential hesitation during acceleration.
3. What are the possible causes of a P0068 code in a Pontiac?
Potential causes include a faulty MAP sensor, MAF sensor, throttle position sensor, wiring issues, vacuum leaks, or a problem with the engine's air intake system.
4. How can I diagnose a P0068 code on my Pontiac?
Diagnosis typically involves using an OBDII scanner to read the code, conducting a visual inspection of the sensors and related components, checking for any visible damage or loose connections, and testing sensor functionality.
5. How can I repair a P0068 code in my Pontiac?
Repair steps may involve replacing the faulty MAP sensor, MAF sensor, or throttle position sensor, repairing any damaged wiring, fixing vacuum leaks, and ensuring proper connections in the intake system.
6. Can a P0068 code be safely driven with in my Pontiac?
Continuing to drive with a P0068 code may lead to further engine issues and potentially worsen fuel efficiency. It is recommended to address the problem promptly to prevent any long-term damage.
7. Will resetting the P0068 code on my Pontiac make it go away permanently?
Simply resetting the code may temporarily clear the check engine light, but the underlying issue causing the P0068 code will persist unless properly diagnosed and repaired.
8. Are there any maintenance tips to prevent a P0068 code in my Pontiac?
Regularly inspecting and maintaining the MAP sensor, MAF sensor, throttle position sensor, and intake system components can help prevent issues that may trigger a P0068 code.
9. Can a DIY enthusiast repair a P0068 code on a Pontiac?
Depending on your level of automotive expertise, you may be able to perform basic diagnostics and sensor replacements. However, complex issues or wiring problems may require professional assistance.
10. How much does it typically cost to repair a P0068 code in a Pontiac?
The cost of repairs for a P0068 code can vary based on the specific components needing replacement and labor costs. It is advisable to get estimates from local mechanics or dealerships for an accurate price range.
Discuss the causes and fixes for P0068 Pontiac OBDII Code
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2007 Grand Prix GT SC 3.8...doesn't start, when does by pressing on gas as you start it, it will run very rough for about 10 secs then shows TC OFF/REDUCED ENGINE POWER & then SERVICE TRACTION SYSTEM & then stalls. Bought brand new MAF Sensor, Filter, Throttle Body, PCV Valve ad still the same. All started after replacing return hose for power steering, worked fine before that.
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Start by checking the Manifold Absolute Pressure (MAP) Sensor connector. If the connector is OK, then you may have to replace the sensor.
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