P0108 Saturn Code - Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Quick Answer
The Manifold Absolute Pressure (MAP) sensor measures the pressure inside the intake manifold. Common causes include Faulty Manifold Absolute Pressure (MAP) Sensor, Manifold Absolute Pressure Sensor harness is open or shorted, Manifold Absolute Pressure 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
- P0108 Saturn indicates Manifold Absolute Pressure/Barometric Pressure Circuit High Input.
- Common causes
- Common causes include Faulty Manifold Absolute Pressure (MAP) Sensor, Manifold Absolute Pressure Sensor harness is open or shorted, Manifold Absolute Pressure 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.
Code P0108 Saturn Description
The MAP sensor wiring includes 3 circuits. The Engine Control Module (ECM) supplies a regulated 5 volts to the sensor on a 5 V reference circuit. The ECM supplies ground on a low reference circuit. The MAP sensor provides a signal voltage to the ECM, relative to the pressure changes, on the MAP sensor signal circuit. The ECM converts the signal voltage input to a pressure value.
Under normal operation the greatest pressure that can exist in the intake manifold is at ignition ON, engine OFF, which is equal to the BARO. The lowest manifold pressure occurs when the vehicle is idling or decelerating. The ECM monitors the MAP sensor signal for pressure outside of the normal range.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the MAP Sensor voltage is more than 4.50 V for greater than 13 ms.
What are the Possible Causes of the DTC P0108 Saturn?
- Faulty Manifold Absolute Pressure (MAP) Sensor
- Manifold Absolute Pressure Sensor harness is open or shorted
- Manifold Absolute Pressure Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0108 Saturn?
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 P0108 Saturn 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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Frequently Asked Questions about P0108 Saturn Code
1. What are the common symptoms of OBDII code P0108 in a Saturn vehicle?
Common symptoms include poor engine performance, reduced fuel efficiency, rough idling, stalling, and possibly an illuminated check engine light.
2. What does the OBDII code P0108 on a Saturn indicate?
OBDII code P0108 indicates a high input in the Manifold Absolute Pressure (MAP) or Barometric Pressure Circuit.
3. What are the possible causes of OBDII code P0108 in a Saturn?
Possible causes include a faulty MAP sensor, damaged wiring or connectors in the MAP circuit, a vacuum leak, or a problem with the engine's computer.
4. How can I diagnose the cause of OBDII code P0108 in my Saturn?
Diagnosis involves inspecting the MAP sensor, checking for vacuum leaks, testing the wiring and connectors in the MAP circuit, and using a scan tool to monitor sensor data.
5. Can I drive my Saturn with OBDII code P0108?
It is not recommended to drive your Saturn with OBDII code P0108, as it can lead to further engine damage and potentially unsafe driving conditions.
6. How can I repair OBDII code P0108 in my Saturn?
Repair options include replacing the faulty MAP sensor, repairing damaged wiring or connectors, fixing any vacuum leaks, or reprogramming the engine's computer.
7. Will resetting the check engine light make OBDII code P0108 go away?
Resetting the check engine light may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return.
8. Is OBDII code P0108 in a Saturn a serious issue?
OBDII code P0108 should be addressed promptly to prevent further damage to the engine and ensure optimal performance and fuel efficiency.
9. Can a DIY enthusiast fix OBDII code P0108 in a Saturn?
Depending on their skill level, DIY enthusiasts may be able to diagnose and repair OBDII code P0108 in a Saturn by following proper diagnostic procedures and using the right tools.
10. How much does it cost to repair OBDII code P0108 in a Saturn?
The cost of repairing OBDII code P0108 in a Saturn can vary depending on the underlying cause, parts needed, and labor rates, but it is generally affordable compared to more complex engine issues.
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