Hi All,

If the fuel injectors were incorrectly configured at the time of fitment what would happen?

I have a feeling that when the injectors in my vehicle were replaced they were incorrectly programmed, I suspect the mechanic may have taken piston 4 as piston 1, in other words started counted 1234 with 4 closest to the gearbox, which is incorrect.

Regards Thanks

SMG

It will run (possibly) a little rough, that's all, but it will run alright.
Each injector has its own tolerances, due to the manufacturing process.
For example an injector will spray 10.14 cc of diesel during 1 second of energizing, other will spray 10.29 cc. Pure theoretical values, taken for the sake of example.
Those tolerances are coded into those injector numbers that need to be programmed to the engine ECU, for the ECU to make the appropriate correction for the energizing time, in order for all injectors to spray the same amount of diesel during an engine cycle.
BUT...
The ECU will measure any injector imbalances during an engine cycle and will dynamically correct the injected quantity and learn and store them during time. This because, during time, the injectors will also go out of (initial) tolerances because of age, wear, carbon deposits, etc.
So that initial (possibly wrong) programming is an initial reference and will quickly be surpassed.

 FL2 MY10 TD4 GS traded in at 2 years
FL2 MY13 TD4 GS Current

Thanks Alex, so not too much of a concern then.

I appreciate your feedback. Thanks

SMG