Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.
One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.
Difficulty Level (Expert)
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Repair Time (35 Min.)
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| Cost Prediction : $ 40-75 |
If your p20cb exhaust aftertreatment fuel injector a control circuit/open check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P20CB and engine control unit are in charge of monitoring a bunch of different p20cb exhaust aftertreatment fuel injector a control circuit/open, and if they get a reading that's a little out of whack, up pops the check engine light.
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P20CB is a kind of Powertrain Trouble Code
Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air. |
You can view according P20CB DTC for your car model. We selected several models to see obd2 solutions click and view it.
| +P20CB Peugeot 307 | +P20CB Nissan Gt-r | +P20CB Audi Coupe | +P20CB Oldsmobile Omega | +P20CB Studebaker Daytona |
Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.
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