My Project: BMW e28 M535i, 179 DME Motronic 1.3 with CR 10:1

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oleg535i
Posts: 10
Joined: Fri Aug 22, 2014 10:39 am
Location: Moldova

My Project: BMW e28 M535i, 179 DME Motronic 1.3 with CR 10:1

Post by oleg535i »

I'll post about my project here.

I bought a BMW e28, M535i, Euro engine with CR10:1, Motronic 1.0

My original DME crashed, so I decided to switch to Motronic 1.3 179 DME, from an e32/e34

After bought all parts, it took about 2 days to install everything.

Now it's Motronic 1.3, 179 DME, 1267356460 software, Lambda sensor, working with my stoc 10:1 CR M30b34 engine.

Everything was ok, but because 179 DME was programmed to work with 9:1 CR Engine, I heard some detonations, most at low RPM and high loads.

Bought a chip from Conny (Coneus) probably some of you know him.

Was an improvement, redline 6700, much smoother acceleration, 3500-4000 lug disappeared,
but anyway I could hear detonations under some conditions.

Also AFR at low load at 800 RPM was 22 :shock: it was pinging hard!

IMG]http://i.minus.com/j49o0cDmcYeW6.png[/IMG]

So I decided to find the xdf and to try to make improvements on my own.

Couldn't find the xdf, and I made myself based on another 179 DME xdf.

Can be downloaded from here:
https://dl.dropboxusercontent.com/u/145 ... 356460.xdf

_______________________________

What was done:
1. XX
added fuel (~13.5 AFR), to make it run with less vibrations.
And it's better now.

Now trying to play with ignition.

Engine start with 9, with 18, but not with 16 :shock:

Can't understand why.

The address of Idle Ignition I found is 5378
Am I right?
oleg535i
Posts: 10
Joined: Fri Aug 22, 2014 10:39 am
Location: Moldova

Post by oleg535i »

I've tried to combine and adopt the 061 fuel and timing maps to 179 maps.
It runs well but it remembered me the old Motronic 1.0, with a not very linear acceleration.

Bin:
https://dl.dropboxusercontent.com/u/145 ... 0test1.bin
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biela
Posts: 35
Joined: Tue Jul 22, 2014 1:01 pm

Post by biela »

55F9 could be also idle ignition?
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