Air/Fuel mixture, manual adjustments possible? Options

[newto914s]

I was wondering if their is anyway to manualy adjust the air/fuel mixture on a 2L with stock d-jet fuel injection. I really feel like my car is running rich and I hear a good sized sucking nose coming from my throtle plate.
It sounds and feels like my car can't breath.
Thanks

[Demick]

If it is running to rich or too lean, then there is probably a problem with one or more components in the FI system, or something is mismatched, or something not hooked up right.

So first make sure everything is working properly to start with.

After that - if you want to make across the board changes to the mixture, that is most easily done by altering the fuel pressure slightly. But if you want to customize the mixture at different loads, you can only do that with adjustments to the MPS - and even then you are quite limited in how the profile can be altered.

First step would be to get a wide band O2 sensor so you really know what your engine is doing. Only then can you make educated changes to the F.I. system.

Demick