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P2291 Code - Injector Control Pressure Too Low Engine Cranking

- Code Popularity: 22,790 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P2291?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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
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How to Fix the DTC P2291?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2291 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P2291 Description

The Powertrain Control Module (PCM) monitors the Injector Control Pressure (ICP) sensor. The code sets when the signal from the sensor is out of factory specifications, and the PCM will go to open loop control of injection control pressure (operate from an estimated injection control pressure).
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.

OBDII Code P2291 - Injector Control Pressure Too Low Engine Cranking - AutoCodes.com
P2291 Code - Injector Control Pressure Too Low Engine Cranking

Need More Information on the Code?

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Information for Specific Makes

  • P2291 Dodge Injector Control Pressure Too Low Engine Cranking
  • P2291 Ford Injector Control Pressure Too Low Engine Cranking  

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