RS4 HFM - calibrated and tweaked in motronic or just slapped in there (sO to speak) ?
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Paul Nugent
Webmaster http://S2central.net
Administrator http://S2forum.com
1994 S2 Coupe ABY - aka Project Lazarus
2001 A6 allroad 2.5TDi - family tank
2003 S4 Avant 4.2 V8 - daily burble
Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)
There are only 10 kinds of people that understand binary - those that do, and those that don't
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It's an adapter based on rs4 MAF that emulates s2/rs2 MAF ?????Paul Nugent
Webmaster http://S2central.net
Administrator http://S2forum.com
1994 S2 Coupe ABY - aka Project Lazarus
2001 A6 allroad 2.5TDi - family tank
2003 S4 Avant 4.2 V8 - daily burble
Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)
There are only 10 kinds of people that understand binary - those that do, and those that don'tComment
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Mmmm - yeah - that is not trivial stuff... Dmitri spent a long time revenging the MAF & load code in Motronic so that he has a solution for HFM5 MAF from RS4 - fair amount of custom coding and some resistor swaps on the ECU with other tweaks to make it all work. Once the ECU (and loom) is modified then it is plug and play with the RS4 MAF.
Am external, purely electronic adapter, is good concept - but it wouldnt be easy !
I know how one could be made with a suitable processor and such but its not at all trivial... might be worth investigation and/or prototyping
But getting back on topic - try an S2/RS2 MAF on your car to see how she goes with AFR & adaptation - if it is lots better then your adapter for the RS4 MAF must be out of whack !Paul Nugent
Webmaster http://S2central.net
Administrator http://S2forum.com
1994 S2 Coupe ABY - aka Project Lazarus
2001 A6 allroad 2.5TDi - family tank
2003 S4 Avant 4.2 V8 - daily burble
Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)
There are only 10 kinds of people that understand binary - those that do, and those that don'tComment
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As for HFM5 stuff - there is one thing missing from the puzzle
The price. hehe.
Anyway, for your running rich issue - try cleaning maf with brake cleaner, do a full boost leak test.
Dropping CR within sane limits won't really affect your AFR, as Motronic uses the MAF to read how much air is going into the engine and then delivers the requested target of fuel.
As long as you don't change injectors, fuel pressure etc, it should always be the same.
But yeah, sounds like a massive boost leak.Comment
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Do I read that PKM price list right - 1100 Eurios for an HFM adapter ? If so that is truly outrageous.Paul Nugent
Webmaster http://S2central.net
Administrator http://S2forum.com
1994 S2 Coupe ABY - aka Project Lazarus
2001 A6 allroad 2.5TDi - family tank
2003 S4 Avant 4.2 V8 - daily burble
Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)
There are only 10 kinds of people that understand binary - those that do, and those that don'tComment
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HalloHi Dmitri, lang nicht gesprochen
-- > so look at this: http://www.pk-motorsport.de/diagramm...PS%20S4.S6.pdf
Pretty high prices.
For changing the car from stock MAF to HFM5, diagnostics and tuning it mostly from scratch I usually ask 400 EUR...
But yeah, I guess at PKM you get a TÜV cerificate as well.Comment
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