P1210 - FAULT CODE - OBD2

POST UPDATED IN January, 2023

P1210 Code failures by brands

P1210 FORD: INJECTOR CONTROL PRESSURE EXCEEDS EXPECTED LEVEL

Description of DTC code P1210

The fuel pressure sensor (ICP) is a device that is part of the engine management system and is usually installed on diesel engine vehicles. As the name implies, this electronic sensor monitors the fuel pressure reaching the injectors.

Diesel engines require a more precise fuel mixture because they rely on pressure and temperature rather than a spark to ignite the fuel mixture. The ICP sensor detects the fuel pressure feeding the injectors and sends that information to the ECM (Engine Control Module), which then makes the necessary adjustments for optimum performance and efficiency.

The ECM continuously monitors the injector control pressure to verify that the injector control pressure is correct. If it finds that the injector control signal exceeds the set limit, it will set the P1210 OBDII diagnostic code.

Symptoms of fault code P1210

  • Check Engine light comes on.
  • Trouble starting the engine.
  • Engine power decreased.
  • Poor acceleration.
  • Decreased fuel efficiency.

Causes of OBD2 P1210

The reasons why the OBD2 fault code P1210 is set are:

  • Injection Control Pressure Sensor wires or connectors could have been damaged.
  • The ICP Sensor control circuit may be faulty causing a short.
  • The Fuel Pressure Sensor may be in poor condition.

Possible solutions of the DTC code P1210

To troubleshoot the DTC P1210 OBDII code you must do the following:

  • As a first step consult the TSB.
  • Verify that the wiring and connectors related to the ICP Sensor do not present deficiencies caused by corrosion or burns. If such conditions are discovered, make the appropriate corrections.
  • Measure the ICP Sensor control circuit voltages to verify that it is not open or shorted. Look for deficient voltages or mismatched connections and if such inconsistencies are found, proceed with repairs.
  • Follow the manufacturer's recommendations to diagnose the Injection Control Pressure Sensor. If after performing these tests you determine that the sensor is damaged, consider replacing it.

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