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Error Code P2289: What It Means & What To Do?

OBD Code P2289 - Injector Control Pressure Too High - Engine Off

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Confused? Too many big words to comprehend at once? Don’t worry, you have got our back! Here’s how you can solve the error code P2289. It should be noted that OBD-II code engine may not start is also recognized as an injector control pressure too high – engine off. In order to control the fuel injectors on the diesel engine, a number of diesel engines employ high pressure oil. Also, the oil pressure going to the injectors is monitored by the injector pressure regulator (IPR) while the injector control pressure sensor controls the oil pressure generated by the high pressure oil pump. Whensoever the ICP transmits an impractical signal, the error code P2289 is stored. At times, the engine fails to start too.

Learn More About OBD Error Code P2289

It is important to note that the injector control pressure (ICP) sensor is regulated by the powertrain control module (PCM). When the signal fails to fall within the manufacturer’ requirements, the code P2289 is set. The powertrain control module enters a mode where it opens the loop control of injection control pressure (functioning from a calculated injection control pressure). Also, the ICP sensor is a variable capacitance sensor that when provided with a 5-volts reference signal from the PCM tends to produce a linear analog voltage signal that signifies pressure. Also, its serves the chief function of providing a feedback signal to indicate rail pressure so that the powertrain control module so that it further commands the appropriate injector timing and pulse width with the right injection control pressure for proper fuel delivery at all speeds and load conditions.

What causes this problem with the Injector Control Pressure Too High - Engine Off?

  • Partially correct ICP sensor or the FRP (fuel rail pressure) sensor (often reading wrong pressures)
  • The ICP sensor recording the engine fuel off pressure above the required fuel pressure range
  • Distorted FRP sensor (detecting higher than normal pressures)

Replace/Repair These Parts To Fix Code P2289

  1. Injector Control Pressure Sensor - Check engine light illuminated? Bad gas mileage? Yes, all this happens due to a malfunction in the injector control pressure sensor. We advise you to get your faulty injector control pressure sensor changed right away. Now get your injector control pressure sensor delivered right at your doorstep with Parts Avatar!
  2. Fuel Injector - Is your engine very hard to start or turn over? Engine stalls after every few minutes? Error code P2289? It is all likely to be caused due to a fault in the fuel injector. Change or repair now!
  3. Oil Pump - Wishing to combat the problems caused by error code P2289? Tired of all these problems? Observing an emissions test failure? Falling fuel economy? Don’t worry, we have a solution! Log into Parts Avatar for you new oil pump available at budget friendly prices.
  4. Fuel Rail Pressure Sensor - Suddenly observing an increased consumption by the equipments? Noticing a loss of efficiency of the fuel tank? Well, we just know the reason behind it. All of this is likely to be caused due to a bad fuel rail pressure sensor. Visit our site today to grab amazing deals on premium quality products.
  5. Dash Check Engine Light - A damaged dash check engine light should be fixed right away if want to stay updated about the problems occuring in the system.
  6. Engine Control Module - Often regarded as the brain of the system, a damaged one illuminates the check engine light and triggers problems like engine stalling. Now get your error code P2289 mended or restored as soon as possible. Log into Parts Avatar!
  7. Fuel Gauge - Don’t know the root cause behind problems like difficulty while starting the vehicle? Is your fuel gauge not working? It could all be due to a fault in the fuel gauge. Mend or restore now.

Symptoms Of The OBD Error Code P2289

Well, if you are looking to know about the common symptoms related to this error code P2289, we are have worked out a small list to help you discover this error code with your vehicle.

Common Symptoms

  • An illuminated check engine light along with the code set in the ECM memory
  • When the pressures are normal and rich if the pressure is too high, the engine may run as per the requirements
  • Engine may run rich (if fuel pressures are more than the specified range)

How To Correct Injector Control Pressure Too High - Engine Off Issue

Once you know the symptoms of your vehicle’s problem, it becomes easy to detect it and get started with solving it. So, next on our list is few common steps to correct this issue with your vehicle’s

  • Replace or repair a damaged injector control pressure sensor (ICP) or the fuel rail pressure sensor (FRP)
  • All the wirings and connections to the ICP or FRP signal return should be repaired or restored (one is likely to notice abnormal readings due to corrosion in the connectors)
  • A defective ECM should be repaired or changed

If you need parts to fix this issue, you no longer need to search for them. We at PartsAvatar Canada have an extensive range of auto parts injector control pressure sensor, fuel injector, oil pump, fuel rail pressure sensor, engine light, ECM, fuel gauge in stock from you, ranging from all replacement parts to all interior and exterior parts

Easy Diagnosis Of Engine Error OBD Code P2289

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P2289 code to be stored:

Start with scanning the codes and documenting the code stored in the engine control module. The freeze frame data should be seen for any failures. The manufacturer’ pinpoint test procedures should be referred to for verifying fuel pressures. Also, follow the manufacturer’ pinpoint testing for the ICP codes received. Next, the fuel pressure should be checked at the specified engine RPM level to compare it to the provisions utilizing a gauge. Finally compare the test readings with a gauge to the sensor readings for the ICP and FRP.

Common Mistakes When Diagnosing the P2289 Code

Here we have listed a few common mistakes that should be avoided while diagnosing the code:

  • When the freeze frame data is for the main failure problem is not referred to, before clearing the ECM memory codes (the error/repair may be duplicated)
  • When the manufacturer pinpoint tests for the application are not referred to
  • Performing a replacement of the ICP (assuming that part is damaged without verification)

Other Diagnostic Codes Related To OBD Code P2289

P2283 - Injector Control Pressure Sensor Circuit

P2284 - Injector Control Pressure Sensor Circuit Range/Performance

P2285 - Injector Control Pressure Sensor Circuit Low

P2286 - Injector Control Pressure Sensor Circuit High

P2287 - Injector Control Pressure Sensor Circuit Intermittent

P2288 - Injector Control Pressure Too High