What are the repair steps for P0108 fault code?

[McJude]

Confirm the position of the exhaust pipe on the current faulty vehicle, then inspect the exhaust pipe to observe if it is blocked. If the exhaust pipe is found to be blocked, replace the exhaust pipe.

[LeFrank]

Last time my car showed the P0108 code, I went straight to the repair shop. The experienced mechanic guided me through the troubleshooting step by step: First, he disconnected the small black box on the intake pipe (that's the MAP sensor) and cleaned the oil stains with carburetor cleaner. Then, he checked the vacuum hose for any holes or leaks, testing the tube's seal with a syringe. He found that the sensor connector pins were oxidized, so he carefully sprayed them with electronic cleaner three times. The most frustrating part was discovering a blown 10A fuse in the fuse box. After replacing it and clearing the fault code, we drove ten kilometers without the light coming back on. The mechanic said using low-quality fuel can easily cause carbon buildup on the sensor and recommended cleaning it every 20,000 kilometers. In the end, it cost me 300 yuan for the sensor cleaning and a full vehicle wiring inspection.

[AndrewAnn]

Don't rush to replace parts when encountering P0108. Follow this troubleshooting sequence: First, use an OBD scanner to read real-time data streams and check if the intake pressure exceeds 300kPa. Second, turn off the engine, unplug the sensor connector, and measure the voltage—the power line should show 5V. Third, inspect the vacuum hose by pinching it while starting the engine and listening for changes in engine sound. Fourth, remove the sensor and soak it in throttle body cleaner for fifteen minutes. Pay special attention to the wiring harness! Last time, my car had abnormal signals due to rodent damage on the engine bay wiring harness—wrapping it with heat-shrink tubing saved me $800. Finally, don't forget to check for rust on the ECU grounding terminal.

[ElleMarie]

Last year, my old Ford kept throwing a P0108 code. Here’s a money-saving three-step fix: First, grab a can of WD-40 to clean the sensor (located behind the throttle body). Then, focus on the vacuum hose—mine was cracked due to aging, so I trimmed the damaged section and reconnected it tightly. Finally, head to the auto parts market and spend 85 bucks on an aftermarket sensor to replace it yourself. Important! Make sure you hear a click when plugging in the connector. After replacement, use a technician’s scanner to clear the fault code and test it by flooring the throttle on the highway. It’s been 30,000 miles with no recurrence, and the total cost was under 200 bucks.