RS4 MAF on 5-Cylinder 20V

[karel5000]

Hi Guys,

is it possible to connect the RS4 MAF (0 280 218 067) with the stock ECU of the 3B-Engine without any problem? Just connect it, adjust the MAPs and good?

I have read in a forum that the connection of this ECU with the RS4 MAF is impossible. For this purpose, people recommend another MAF - e.g. S8. However, seeing the pinout of the RS4 MAF and the Voltage, I think that it should be no problem...

(I am searching for a HFM for 600PS)

Thanks!
Karel5000

[andrix]

Yes you can, but after that you need to do remap

Andris

[karel5000]

Yes you can, but after that you need to do remap

Andris

Thanx for the antwort! I thought it. Do you also have the RS4 MAF installed on your car?

One more question to the remapping. I usually let the MAF-map without any change and remap all the other maps. It is very much work but I have not found the MAF-map yet. According to some manuals of the old Motronic ECUs, the MAF-map should be built as an equation consisted of two maps with some exponents and so on. But I have never found such maps here. How is it made here and eventually, how do these maps look like?

And does someone of you possess the Air/V curve of the RS4 MAF?

Thanx,
Karel5000

[Laaf]

No, it requires hardware mods inside the ECU. I've got the RS4 maf on my car.

[SteveH]

This will not work without cabling changes and specific mapping. PRJ can do this mod, however, I very much doubt he would unless you can visit him in person.

[Nuno_Cristiano]

You can change the diameter of hose of maf.

[Sonic]

As stated it requires some hardware tweaks inside the ECU plus wiring for the new MAF sensor and a remap. PRJ also did mine.

[karel5000]

What do these tweaks or mods mean? Why is it necessary? All voltages are the same as on the stock MAF. The only problem could be, that the stock ECU does not get enough power or that the MAF-curve starts with a much different Voltage. It would be nice, if someone could post the Air/V curve of the RS4 MAF.

To take a bigger hosing for the stock MAF is very bad. I drive with 100mm for a longer time and I am very unhappy. The measurement is very inexact and the big box has very big temperatur drifts. Maybe it could be a bit better with the 90mm hosing but I am not sure if I can reach 600PS with it. I would like to get a new HFM. Some people use a S8 MAF. As I have heared, it should be easier to connect it. I must also get some info about it...

[vti2]

Honester puts S8 MAF on the RS4 housing, modify the cables and hardwere on the ecu.

[karel5000]

Honester puts S8 MAF on the RS4 housing, modify the cables and hardwere on the ecu.

Thanx for the Info! And do you know the number of the S8 MAF? Does it reach 600PS with the RS4 housing?

[vti2]

The number i don't know nur it runns more than 600

[karel5000]

The number i don't know nur it runns more than 600

Thanx for your answer. Maybe someone tells us the number of the S8 MAF...

[karel5000]

Maybe it is the S8/RS6/R8 MAF with the number 07C906461A...

[prj]

There is only one person who can adequately answer your questions, and you pissed that person off a long time ago.

So all I will do is this:

[Christophski]

Hahaha PRJ legendary answer