2013 PACCAR MX-13 – P0201 Injector solenoid valve cylinder 1 – Current too low or open circuit on ECU D420 pin A26 or A25

Fault code description

1 trip MIL
3 drive cycle recovery
Readiness group – None
Freeze frame type – Comprehensive

Description of component(s)

The fuel injector injects fuel into the combustion chamber.

Control
The amount of fuel injected depends on the duration of the injector solenoid activation in combination with the rail pressure. The longer the solenoid is activated by the PCI ECU at the same rail pressure, the more fuel is injected.

Injector codes
Every fuel injector is calibrated during production to compensate for any production tolerances. An injector calibration code is present on the housing and connector of the injector. These injector codes must be (re)programmed with DAVIE if one or more injectors have been replaced or fitted in another position, or if the PCI ECU is replaced.

Not programming or incorrectly programmed injector codes can result in reduced engine performance or a warning to the driver.

Location of component(s)

Diagnostic condition

The diagnostic runs whenever the Power stage hardware is active for less than 1 sec.

Set condition of fault code

This condition will be set if Current in Pump control valve is less than 4.5A

Reset condition of fault code

Please Contact the Engine Support Center

Electrical diagram(s)

Technical data

Possible causes

* Faulty wiring
* Faulty connector
* Faulty solenoid valve

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