Fuel Injector Correction Factors

There are 3 common situations that demand this function.

• After Injector replacement.
• Fuel Injection system calibration
• Drivability problems like Lack of power, Black smoke and the presence of DTC’s P2336, P2337, P2338 can often be fixed by re-entering the existing 4 injector codes. Support for more than 4 injectors has been added.

Note: - On earlier model years ( pre-2003 ) it is not possible to read the actual injector codes. - It is important to check the codes carefully before entering them. - After entering an injector code the fuel system will initially run without any pilot injector sequence. The car must be driven for a few kilometers.

Engine Type: Duratorq-Turbo Diesel Common Rail Injection
Capacity: 1.6L

Implement this service function if a new fuel injector has been installed.
Each injector has an individual 9 digit code called an injector correction factor.
This code applies individual compensation for each injector as a means of reducing the fuel delivery tolerance.
Perform this procedure to enter the required injector correction factor.

The injector correction factor is located on the head of the injector.
The injector correction factor is 8 digits long.
Ignore the last digit of the 9 digit code printed on the fuel injector.
Enter the injector correction factors in cylinder order.

To update or enter a new code, select the required injector and enter the relevant 8 digit code. Enter all of the required codes, then press the return key displayed on the screen.

Engine Type: Duratorq-Turbo Diesel Common Rail Injection
Capacity: 1.8L
Capacity: 2.0L

The data required for each injector can be found on the injector body.

It consists of 16 characters - numbers and letters.

If you are certain that the original injectors are still fitted to the engine, you may find the data on a lebel on the engine.

Engine Type: Duratorq-Turbo Diesel Common Rail Injection
Capacity: 2.2L
Capacity: 2.4L
Capacity: 3.2L

Carry out this procedure if the Fuel Injector has been replaced

• Each injector has an individual 16 digit code called an injector correction factor.
  This code applies individual compensation for each injector as a means of reducing the fuel delivery tolerance.
  Perform this procedure to enter the required injector correction factor.
  The injector correction factor is located on the injector body.
  To update or enter a new code, select the required injector and enter the relevant 16 digit code. Enter all of the required codes, then press the return key displayed on the screen.
  If a label listing the injector code is still present (on top of the engine), remove it. Information on the label is no longer correct and could mislead other service technicians
  The Pilot Correction Learn procedure must now be performed

Engine Type: Duratorq-Turbo Diesel Common Rail Injection
Capacity: 2.2L

• Perform this procedure if the following new component has been installed: Fuel Injector Each injector has an individual 6 digit code called an injector correction factor. This code applies individual compensation for each injector as a means of reducing the fuel delivery tolerance. Perform this procedure to enter the required injector correction factor. The injector correction factor is located on the injector body. Enter the injector correction factors in cylinder order. To update or enter a new code, select the required injector and enter the relevant code. Enter all of the required codes, then press the return key displayed on the screen.

Engine Type: Duratorq-Turbo Diesel Common Rail Injection StgV
Capacity: 2.0L

• Perform this procedure if the following new component has been installed: Fuel Injector
  Each injector has an individual 20 digit code called an injector correction factor. This code applies individual compensation for each injector as a means of reducing the fuel delivery tolerance. Perform this procedure to enter the required injector correction factor. The injector correction factor is located on the injector body. Enter the injector correction factors in cylinder order. To update or enter a new code, select the required injector and enter the relevant code. Enter all of the required codes, then press the return key displayed on the screen.
  This function is required by service centres when an Injector needs to be replaced, or there is a driveability problem.

• For 1.6 TDCi engines the each injector has an 8-digit calibration code stamped on the body. For 1.8 , 2.0 , 2.2 and 2.4 TDCi engines the each injector has a 16-digit calibration code stamped on the body.

• These codes relate to the electrical and structural characteristics of each injector, which are defined during production. The PCM must know the calibration codes for each injector in order to treat and operate the injectors in the correct manner. This helps to reduce emissions and improve performance. The code must be programmed in by communicating and downloading the code into the PCMs memory.

There are three common situations which demand this function.

1. After Injector replacement.
2. Fuel injection system ‘calibration’.
3. To cure drivability problems. Lack of power, black smoke and the presence of DTC’s:

P2336 - Cylinder 1 Above Knock Threshold
P2337 - Cylinder 2 Above Knock Threshold
P2338 - Cylinder 3 Above Knock Threshold
P2339 - Cylinder 4 Above Knock Threshold can often be fixed by re-entering the existing 4 injector codes.

Fuel Injectors Programming is used on the following vehicles

NOTE:

• On earlier model years (approx pre-2003) it is not possible to read the actual injector codes. On these vehicles you will see ’00 00 00 00 00 00 00 00’ or ‘FF FF FF FF FF FF FF FF’ or a mixture.

• After entering an injector code the fuel system will initially run without any pilot injection sequence. The car must be driven for a few miles to correct this. The codes of the ORIGINAL injectors fitted to vehicle can be found on a label, which is fitted to the side of the engine or on the engine rocker top (if it has not yet been removed).

The codes of the ORIGINAL injectors fitted to vehicle can be found on a label, which is fitted to the side of the engine or on the engine rocker top (if it has not yet been removed).

The codes on the label are in the following format:
(1&2) X1111111122222222X
(3&4) X3333333344444444X

Where

• 11111111 is the code for injector 1,
• 22222222 is the code for injector 2,
• 33333333 is the code for injector 3,
• 44444444 is the code for injector 4.

NOTE: The injectors are in the physical order, NOT firing order. When replacing an Injector the code stamped on the body of the new Injector must be programmed into the PCM, NOT the code on the label.

Duratorq-Turbo Diesel Common Rail Injection 2.4L Carry out this procedure if the following component has been replaced: Fuel Injector Each injector has an individual 16 digit code called an injector correction factor. This code applies individual compensation for each injector as a means of reducing the fuel delivery tolerance. Perform this procedure to enter the required injector correction factor. The injector correction factor is located on the injector body. To update or enter a new code, select the required injector and enter the relevant 16 digit code. Enter all of the required codes, then press the return key displayed on the screen.

WARNING

Before attempting Injector Programming it is necessary for the vehicle to be left stationary with the Engine off for at least 8 hours. This is to ensure that the engine is stone cold before Injector Programming is performed. Failure to follow these instructions may result in failure of the Injector Programming function and/or drivability problems.