AAN serious Maf trouble..

[Costash]

Well I've payd for the new maf £90 but the trouble with the new maf is the remap.This it is gonna be expensive .It is easy for you because your are in the bussines but for others it is not as easy.A remap it is £600 and if you already paid another many hundreds for curent setup it is not cheap at all

[terrybullwon]

I am 99% sure Doug has the standard maf and I am sure Jp will confirm this

[prj]

Because i think its mapped By Minhea and perhaps the maf has been moved to the pressure side.

Dougs S2 used the maf on the pressure side and that was 650hp

I am pretty sure they both used a larger housing as well.
With the stock housing, you can read to about 350hp, after that it's mapping to the last cell, which is not good for the engine.

The reason for using older MAF, trying to enlarge housing, moving it to pressure side etc is because M2.3.2 does not have a linearization table for MAF voltage.
The HFM5 has a completely different curve, so you can not use that without re-writing the logic in ASM inside the ECU that handles how the MAF is read and it's reading converted to load.
It's not enough to edit even all the maps... You can never get it to work by only mapping the ECU without changing the core code.

[terrybullwon]

Well I've seen JP car running 525hp on original maf and wondering how it is working?!If JP can explain us better what maf mods he donne is a less expensive way I think!

Because i think its mapped By Minhea and perhaps the maf has been moved to the pressure side.

Dougs S2 used the maf on the pressure side and that was 650hp

[prj]

Well I've seen JP car running 525hp on original maf and wondering how it is working?!If JP can explain us better what maf mods he donne is a less expensive way I think!

Less expensive?
The HFM5 MAF alone is 140 euros cheaper than the original MAF (and the original MAF price keeps going up - 60 EUR rise in 1 year now). Plus the original MAF needs a custom housing.
Then both options need a remap. Both need plumbing. Moving stock MAF to pressure side needs more work than fitting a HFM5 before turbo.
The connectors for the HFM5 are a couple euros each.
Less expensive? I don't think so. More like the HFM5 solution is parts and labor wise 2-3 times cheaper.

What's the big deal in changing the connector anyhow? A soldering iron, some heat-shrink wrap and you're done.

[Costash]

Well I've seen JP car running 525hp on original maf and wondering how it is working?!If JP can explain us better what maf mods he donne is a less expensive way I think!

[prj]

to understand ,you not gonna use same plug from oem maf right?A bit of a hasle, but if it is the solution.....

No, because HFM5 has a different plug.
Funny you say it's a "hassle". It's much more of a "hassle" to have a ripped MAF every 1000km on a high powered car...

[Costash]

to understand ,you not gonna use same plug from oem maf right?A bit of a hasle, but if it is the solution.....

[prj]

It is gonna work like the original one or need some changes in the programing side?

You will need full remap and special software in the ECU, plus re-wiring the connector and some soldering.

[Costash]

It is gonna work like the original one or need some changes in the programing side?

[prj]

Has anybody tried this?
It looks interesting.

http://www.abacoperformance.com/

For the price of those things you can buy a standalone, plus they will be useless without a remap.

HFM5Can you translate?

http://tinyurl.com/4de95fk

[Costash]

HFM5Can you translate?

[Astro]

Has anybody tried this?
It looks interesting.

http://www.abacoperformance.com/

[prj]

If the maf is before the turbo on intake side it rips the fine wires then doesn't run properly. Happens due to the shockwaves. If you run the maf on the pressure side you won't get the problem as its a more table airmass. You need to make a strapped metal boost pipe contraption si you don't distort the plastic maf housing from over tightening the hoses. And open up the maf to seal the air pipe.

Except the fact that the MAF will read wrong, so you will need a (very thorough) remap anyway.
MAF on pressure side is just a crutch. Real solution is to fit a HFM5 and forget all about wires ripping.

[JP]

If the maf is before the turbo on intake side it rips the fine wires then doesn't run properly. Happens due to the shockwaves. If you run the maf on the pressure side you won't get the problem as its a more table airmass. You need to make a strapped metal boost pipe contraption si you don't distort the plastic maf housing from over tightening the hoses. And open up the maf to seal the air pipe.