P0108 Pontiac Code - Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Quick Answer
The P0108 diagnostic trouble code (DTC) for Pontiac vehicles indicates a high input in the Manifold Absolute Pressure (MAP) or Barometric Pressure (BARO) circuit. Common causes include Faulty MAP sensor, Damaged wiring or connectors, Vacuum leaks. 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
- P0108 Pontiac indicates Manifold Absolute Pressure/Barometric Pressure Circuit High Input.
- Common causes
- Common causes include Faulty MAP sensor, Damaged wiring or connectors, Vacuum leaks.
- 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 P0108 Pontiac Description
The P0108 diagnostic trouble code (DTC) for Pontiac vehicles indicates a high input in the Manifold Absolute Pressure (MAP) or Barometric Pressure (BARO) circuit. The MAP sensor measures the pressure inside the intake manifold, providing crucial data to the engine control module (ECM) to determine the engine's load and adjust fuel delivery and ignition timing accordingly. A high input in this circuit suggests that the pressure reading is above the expected range, leading to potential performance issues.
Common Causes of P0108 Pontiac
- Faulty MAP sensor
- Damaged wiring or connectors
- Vacuum leaks
- Intake manifold leaks
- ECM issues
Symptoms of P0108 Pontiac
- Check engine light illuminated
- Engine running lean or rich
- Poor acceleration or hesitation
- Stalling or rough idle
- Decreased fuel efficiency
How to Fix P0108 Pontiac
- Perform a visual inspection of the MAP sensor, wiring, and connectors for any visible damage.
- Test the MAP sensor using a multimeter to determine if it is functioning within the specified range.
- Check for vacuum leaks by inspecting vacuum hoses and fittings.
- Inspect the intake manifold for leaks and repair or replace gaskets if necessary.
- If the issue persists, consult a professional mechanic for further diagnosis and potential ECM replacement.
Cost to Fix P0108 Pontiac
The cost to repair a P0108 code on a Pontiac can vary depending on the specific cause of the issue. Generally, the price range for replacing a MAP sensor ranges from $100 to $300, including parts and labor. Additional costs may apply if other components need to be replaced or if further diagnosis is required. It's recommended to consult with a trusted mechanic to get an accurate estimate based on your vehicle's specific needs. Labor rates and diagnostic fees can also impact the overall cost of the repair.
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Frequently Asked Questions about P0108 Pontiac Code
1. What are the common symptoms of OBDII code P0108 in a Pontiac?
- Common symptoms include poor engine performance, reduced fuel efficiency, rough idling, stalling, and illuminated Check Engine Light.
2. What does the OBDII code P0108 indicating "Manifold Absolute Pressure/Barometric Pressure Circuit High Input" mean for a Pontiac?
- It means that the Engine Control Module (ECM) has detected a high input voltage from the Manifold Absolute Pressure (MAP) sensor or Barometric Pressure (BARO) sensor.
3. What are the possible causes of OBDII code P0108 in a Pontiac?
- The possible causes include a faulty MAP sensor, BARO sensor, damaged wiring or connectors, vacuum leaks, or a problem with the ECM.
4. How can I diagnose the OBDII code P0108 in my Pontiac?
- You can diagnose the code by checking the MAP and BARO sensor readings using an OBDII scanner, inspecting the sensor wiring and connectors for damage, and testing for vacuum leaks.
5. Can driving with an unresolved OBDII code P0108 cause further damage to my Pontiac?
- Continuing to drive with this code may result in poor engine performance, reduced fuel efficiency, and potential damage to other engine components over time.
6. How can I repair OBDII code P0108 in my Pontiac?
- Repair options include replacing the faulty MAP or BARO sensor, repairing damaged wiring or connectors, fixing any vacuum leaks, or reprogramming the ECM if necessary.
7. Is it safe to reset the Check Engine Light after repairing OBDII code P0108 in my Pontiac?
- Yes, it is safe to reset the Check Engine Light using an OBDII scanner after making the necessary repairs. The light should stay off if the issue has been resolved.
8. Will OBDII code P0108 prevent my Pontiac from passing an emissions test?
- Yes, having an unresolved P0108 code may cause your Pontiac to fail an emissions test due to increased emissions and poor engine performance.
9. How much does it typically cost to repair OBDII code P0108 in a Pontiac?
- The cost of repair can vary depending on the specific cause of the code, but it may range from $100 to $300 for parts and labor.
10. Can I fix OBDII code P0108 in my Pontiac myself, or should I take it to a professional mechanic?
- While some DIY enthusiasts may be able to diagnose and repair this code, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair to ensure the issue is resolved correctly.
Discuss the causes and fixes for P0108 Pontiac OBDII Code
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I replaced the map sensor on my 1998 Pontiac Grand Am. I still have problems with it. It doesn't run well without a foot on the accelerator. It stalls when pressing gas sometimes.
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