BMW E90 Injector Coding With INPA

In this article I will show you how to code fuel injector for direct injection turbocharged engine BMW N54.And at the end of article I will put the video guide,if you need to know more detail,it better to watch the video.

 

What you need to code for BMW N54 engine fuel injector:

*A laptop installed BMW INPA software.(BMW INPA 6.4.3 Software Free Download)

* K+CAN run for BMW INPA

BMW Coding/Flashing/Progrmming PDF+Video Guide

Procedures Of BMW N54 Injector Coding:

 

Step 1:Connect the K+CAN cable to the vehicle and laptop.

Step 2:Launch the BMW INPA software.

Step 3:Tab the “F9” to select BMW E90 classify,then software screen show as below picture:

Step 4:Select “Engine”–>Double click the “MSD 80.0 for N43 N53 & N54 with EWS4…”

Step 5:Then it show the German manual boxs,Select “F9”

Step 6:Tab “Shift +F4”

Step 7:The screen show the engine valve and the other show the fuel.

Step 8:Tab the “F1” to coding for injector 1,and enter the value “58.2” and “2.27” and then coding for others injectors.

Attention:Those values are stamped on the injectors during the manufacturing process. The injectors contain a piezo electric element. Due to the differences in conductivity of the piezo crystals, each injector has a slightly different tolerances when it is manufactured. All injectors go through a testing process in the factory and their measured tolerances are stamped onto their casings. When you replace injectors, you simply tell the ECU what are those tolerances.

 

Here is the video guide of  DIY BMW N54 Injector Coding via INPA: