P2290 - Injector Control Pressure Too Low
- Faulty Injector Control Pressure (ICP) sensor
- Injector Control Pressure (ICP) sensor harness is open or shorted
- Injector Control Pressure (ICP) sensor circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
The ICP sensor is a variable capacitance sensor that, when supplied with a 5-volts reference signal from the PCM, produces a linear analog voltage signal that indicates pressure.
The ICP sensor's primary function is to provide a feedback signal to indicate rail pressure so that the PCM con command the correct injector timing and pulse width and the correct injection control pressure for the proper fuel delivery at all speed and load conditions.
P2290 Information for specific makes
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