P1108 Isuzu Code - Barometric Pressure Circuit Input High
Quick Answer
The P1108 code for Isuzu vehicles indicates a problem with the Barometric Pressure Circuit Input being too high. Common causes include Faulty barometric pressure sensor, Corroded or damaged wiring/connectors, ECM software issues. 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
- P1108 Isuzu indicates Barometric Pressure Circuit Input High.
- Common causes
- Common causes include Faulty barometric pressure sensor, Corroded or damaged wiring/connectors, ECM software issues.
- 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 P1108 Isuzu Description
The P1108 code for Isuzu vehicles indicates a problem with the Barometric Pressure Circuit Input being too high. The barometric pressure sensor is responsible for measuring the atmospheric pressure, which is crucial for the engine control module (ECM) to calculate the air-fuel mixture for optimal combustion. When the barometric pressure input is higher than expected, it can lead to incorrect fuel delivery, affecting the engine's performance and emissions.
Common Causes of P1108 Isuzu
- Faulty barometric pressure sensor
- Corroded or damaged wiring/connectors
- ECM software issues
- Vacuum leaks in the intake system
- Barometric pressure sensor out of calibration
Symptoms of P1108 Isuzu
- Poor fuel economy
- Rough idling
- Hesitation or stalling during acceleration
- Engine misfires
- Check Engine Light illuminated
How to Fix P1108 Isuzu
- Begin by performing a visual inspection of the barometric pressure sensor and its wiring to check for any visible damage or corrosion. Replace or repair any damaged components.
- Test the barometric pressure sensor using a multimeter to ensure it is functioning correctly. Replace the sensor if it is out of specification.
- Check and repair any vacuum leaks in the intake system, as they can affect the barometric pressure readings.
- Clear the diagnostic trouble codes from the ECM using a scan tool and test drive the vehicle to ensure the issue has been resolved.
- If the problem persists, further diagnostic testing may be necessary to pinpoint the exact cause of the high barometric pressure input.
Cost to Fix P1108 Isuzu
The typical repair costs for addressing a P1108 code on an Isuzu vehicle could range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It is essential to factor in diagnostic time and labor rates, which can vary between different auto repair shops. It is advisable to consult with a professional mechanic to get a more accurate estimate based on your vehicle's make and model.
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Frequently Asked Questions about P1108 Isuzu Code
1. What does the OBDII code P1108 mean on an Isuzu vehicle?
P1108 indicates that the Barometric Pressure (BARO) sensor is detecting a voltage input that is too high, suggesting an issue with the sensor or its circuit.
2. What are the common symptoms of code P1108 in an Isuzu?
Symptoms may include poor engine performance, decreased fuel efficiency, rough idling, difficulty starting, or the Check Engine Light illuminating.
3. What causes the P1108 code to appear on an Isuzu?
Common causes include a faulty BARO sensor, damaged or corroded wiring, poor electrical connections, or a malfunctioning Engine Control Module (ECM).
4. Can a dirty air filter trigger the P1108 code?
No, a dirty air filter is unlikely to cause this code, as it relates specifically to the BARO sensor and its electrical circuit.
5. How is the P1108 code diagnosed?
A technician will use a scan tool to confirm the code, inspect the BARO sensor and its wiring for damage, and check the sensor’s voltage readings compared to manufacturer specifications.
6. Can I drive my Isuzu with the P1108 code active?
While the vehicle may still operate, driving with this code active can lead to poor engine performance and increased emissions. It’s best to address the issue promptly.
7. How do you fix the P1108 code on an Isuzu?
Repairs may involve replacing the BARO sensor, repairing or replacing damaged wiring, cleaning electrical connections, or reprogramming the ECM if necessary.
8. How much does it cost to repair the P1108 code on an Isuzu?
Repair costs can vary but typically range from $100 to $300, depending on whether the BARO sensor or wiring needs replacement and labor rates in your area.
9. Can a failing MAP sensor cause the P1108 code on an Isuzu?
The P1108 code is specific to the BARO sensor, not the MAP sensor. However, both sensors share some functions, so a MAP sensor issue could potentially affect BARO sensor readings.
10. Does clearing the P1108 code fix the problem?
Clearing the code will temporarily turn off the Check Engine Light, but if the underlying issue isn’t fixed, the code will return. Proper diagnosis and repair are necessary.
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