The most common potential repairs to address the P0108 code are as follows:
- Verify the code with a scanner. Then reset the fault codes and perform a road test with a scanner attached with live data streaming.
- If the P0108 code comes back, then follow the test procedure.
- Check the MAP sensor voltage, which is normally 5 volts in and .5 out at idle, and a maximum of 5 volts to the ECU. ...
- At this point it is necessary to determine if the MAP sensor is defective and if it has no or incorrect output, then replace the sensor. ...
What does the Diagnostic Code of p0108 mean?
What does the Diagnostic Code of p0108 mean? P0108 is a diagnostic trouble code (DTC) for “Manifold Air Pressure (MAP) Barometric Pressure Sensor Circuit High Voltage Input Problem”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
What does code p0108 mean on Chevy?
There are three possible MAP sensor trouble codes that can light up the check engine light on your Chevrolet Silverado (Suburban, Tahoe) and GMC Sierra (Yukon, Yukon XL) and the P0108: MAP Sensor Circuit High Voltage is one of them. In this tutorial I'll explain what this trouble code means.
What does the OBD II code p0108?
What does the code mean? OBD-ii Code P0108 definition: The MAP (Manifold Absolute Pressure) sensor measures engine manifold negative air pressure. It’s usually a three wire sensor: a ground wire, a 5 volt reference wire from the PCM (Powertrain Control Module) to the MAP sensor, and a signal wire that informs the PCM of the MAP sensor voltage ...
What do codes p0106 and p0107 mean?
What does the Check Engine light on a MAP sensor mean? What causes the p0107 OBD-II trouble code? What codes can a MAP sensor cause? The manifold pressure naturally changes based on the throttle position, but when it fluctuates dramatically, the P0106 code is triggered. Other trouble codes tied to the MAP sensor are P0105, P0107, P0108, and P0109.
What does that mean?
This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Although generic, the specific repair steps may vary depending on make/model.
Possible Solutions
A good way to diagnose if the MAP sensor is to blame would be to compare the KOEO (key on engine off) MAP sensor reading on a scan tool with the Barometric pressure reading. They should be the same because they both measure atmospheric pressure.
Need more help with a p0108 code?
If you still need help regarding the P0108 trouble code, please post your question in our FREE car repair forums.
What Does That Mean?
Symptoms
- Symptoms of a P0108 DTC code may include: 1. MIL (Malfunction Indicator Lamp) will likely be on 2. Engine may run poorly 3. Engine may not run at all 4. Fuel mileage may decrease 5. Presence of black smoke at exhaust
Causes
- Potential causes of a P0108 code: 1. Bad MAP sensor 2. Leak in vacuum supply line to MAP sensor 3. Engine vacuum leak 4. Short on signal wire to PCM 5. Short on reference voltage wire from PCM 6. Open in ground circuit to MAP 7. Worn engine causing low vacuum
Possible Solutions
- A good way to diagnose if the MAP sensor is to blame would be to compare the KOEO (key on engine off) MAP sensor reading on a scan tool with the Barometric pressure reading. They should be the same because they both measure atmospheric pressure. If the MAP reading is greater than 0.5 volt off of the BARO reading, then replacing the MAP sensor would likely fix the problem. Oth…
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Need More Help with A P0108 Code?
- If you still need help regarding the P0108 trouble code, please postyour question in our FREE car repair forums. NOTE: This information is presented for information purposes only.It is not intended as repair advice and we are not responsible for any actionsyou take on any vehicle. All information on this site is copyright protected.