P2138 mitsubishi

Remember Me? Results 1 p2138 mitsubishi 6 of 6. Garage Spot. Limped to a side street to check the oil level as an oil change was the latest action taken on the car.

Code No. Check code No. P accelerator pedal position sensor main circuit low input Refer to. P accelerator pedal position sensor sub circuit low input Refer to. Engine-ECU checks the accelerator pedal position sensor output signal characteristics for abnormal conditions.

P2138 mitsubishi

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Last week I was slowly coasting down my neighborhood street and suddenly I felt power loss in the car accompanied by the check engine light. The flagged code is P which represents a bad throttle position sensor. I have since replaced my throttle position sensor with 2 separate brand new sensors from the dealer, both of which have done nothing to fix the code. Today I spent half my day at the dealer fighting with them about how its just not probable that two brand new sensors are bad. They refused to do a voltage check on the pins of the sensor as the stickied workshop manual describes. This is where the second brand new sensor comes in. The tech flashed it twice with the latest version of code for my vehicle but there was no change. Coupled with a timing belt change and a few other repairs, I am exceeding the estimated market value of the vehicle and I am in a real bad spot. Does anyone have any suggestions that help me in any way here? I would like to keep my car even if that means doing all of the repairs myself but having to borrow money for thousands in repairs has me doing weights and balances with the "forced" option of trading in and buying new.

Change of accelerator pedal position sensor main output voltage per 25 milliseconds is less than 0.

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In this video, our mechanic breaks down the P code, its symptoms, including poor acceleration and reduced power mode, and shows you how to diagnose the potential causes so you know what to do to clear the code. Want to watch more videos like this? Visit our video library for thousands of automotive diagnostic and how-to videos. As our mechanic explains in the video above , a gas pedal has two APP sensors to essentially serve as fail-safes for each other in case one triggers an error code. He uses an OBD-II scan tool to look at the data for both sensors to see whether the sensors are working normally. You can see if the data correlates by watching it on your scan tool as you press the gas with your car parked. We recommend addressing the issue causing code P as soon as possible.

P2138 mitsubishi

Advertiser Disclosure. The voltage readings going to the Engine Control Module ECM from the throttle body position sensor and accelerator pedal position sensor do not match each other. On older vehicles, the throttle body was connected to the accelerator pedal via a throttle cable which was a mechanical link between the two. When you pushed the accelerator pedal the throttle body opened, simple as that. As vehicles became more powerful, emissions controls became stricter and better fuel mileage was a requirement, there needed to be a way for the Engine Control Module ECM to control the throttle more precisely. Thus, the drive by wire system was introduced. In this system, the accelerator has a sensor on it that detects how hard you are pressing on the accelerator pedal, and based on the information the ECM receives it commands the throttle body to open based on your accelerator input. This system can also be used for traction control; if the ECM sees that the wheels are slipping, it can limit throttle opening in order to gain control of the vehicle. It may require the vehicle to be towed to a repair facility. This trouble code can cause the vehicle to lose throttle response.

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Research modifications, troubleshooting, maintenance, and Turbo kits. Clear the code, shut the ignition off and back on, re-scan and the code is back. STEP 9. Go to Step Throttle opening degree position is in default position if accelerator pedal position sensor sub fails. Ignition switch is "ON" position. To the person that gets my car Does anyone have any suggestions that help me in any way here? The code was back and the service light was on again. There is an aftermarket cruise installed so I removed it and cleared the code. I would like to keep my car even if that means doing all of the repairs myself but having to borrow money for thousands in repairs has me doing weights and balances with the "forced" option of trading in and buying new. I couldn't deal with it anymore, I had been out of transportation for a week and I needed to get to work. The dealer refused to test the voltage coming through the wires as the workshop manual suggests because their little MUT-II scanner gave them enough information to convince them it was the sensor.

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Hate to take it to the Stealer Ship but it may be necessary. STEP 2. I am going to pull apart the connectors to both the sensor and throttle body today and clean them and apply dielectric grease to them as instructed by another member over PM. I couldn't deal with it anymore, I had been out of transportation for a week and I needed to get to work. P accelerator pedal position sensor main circuit low input Refer to. You will need to get your keys reprogrammed after swapping ECU's. Check code No. They refused to do a voltage check on the pins of the sensor as the stickied workshop manual describes. I wrote down exactly what was in the service report of my car in my post -- "High resistance on pin 7 connector ZB STEP 5. Barleyboy 15 Replies. The "Service Engine Soon" light was on. Garage Speck. Nothing happened.