here's a thought.... just ditch the M104 and go with the OM603 or 606.

no circuitry there..... and they bolt to the same transmissions.

__________________
1992 850i 6 speed
1991 M3 S54B32 swap
2007 328iT/6 RWD sport wagon
1987 325E 330iZHP engine swap
2004 Vespa 200GT
1976 W115 240D getting a much bigger engine. 5.5L
1997 R129 SL600 5AT

this is the original plan... just thinking of ways to salvage the m104...

coal power would be awesome!

__________________

85 190E 2.3(SOLD)
86 230E (-->300D) sold
87 300D (-->300TD) sold
68 250S w/ a 615 and manual tranny (RIP)
87 300TD (SOLD)
95 S280 "The KRAKEN" (Turbo 2.9 602 transplant) traded
86 190E 2.3... current project

only downside... they arent free.

seriously though, a whole MS setup will only cost you $550 or so and they are potent beasts with it.

__________________
1992 850i 6 speed
1991 M3 S54B32 swap
2007 328iT/6 RWD sport wagon
1987 325E 330iZHP engine swap
2004 Vespa 200GT
1976 W115 240D getting a much bigger engine. 5.5L
1997 R129 SL600 5AT

yup, i'm doing research on MegaSquirt and MegaJolt, they seem to be easy to work with... though as i've said, i've never worked on compuer controlled engines, and am just now learning in depth how EFI works while reading up on MS/MJ. it looks intimidating but is quite straightforward.

but there are basic things about the m104 that i need to understand first... the distributor on the exhaust cam as mentioned by MAG58, is it a real distributor or is it just a cam position sensor? what does it output? the guys at MS are asking. And what about the coil system... does it have coil packs(3)... or single coils(6) for each sparkplug?

If someone has experience with megaJOLT, does it simply get it's INPUT from the cam position sensor?

thanks... this option looks promising... and will open up a whole new world of engine tuning and restoration options for me.

Though i STILL am a DIESEL guy.

__________________

85 190E 2.3(SOLD)
86 230E (-->300D) sold
87 300D (-->300TD) sold
68 250S w/ a 615 and manual tranny (RIP)
87 300TD (SOLD)
95 S280 "The KRAKEN" (Turbo 2.9 602 transplant) traded
86 190E 2.3... current project

If you have the M104.980 like me.....it is a very nice setup.

The distributor on the exhaust cam is a true distributor. There is one coil located near the power steering pump.

The car is equipped with true Bosch CIS fuel injection, which is very elementary in concept, and the ignition system is old school....without coil packs....which I love!

Not to burst anybody's bubble, but using a Megasquirt or similar system will not make the M104-24V much faster then if it's properly tuned with the stock HFM.

__________________
http://i19.photobucket.com/albums/b1...c/GOWIDE-1.jpg
1971 280SL ROADSTER
1988 300CE TWIN TURBO WIDEBODY
1994 E320 CABRIOLET
1999 C43 AMG
2005 G55K AMG
2008 CLK63 AMG BLACK SERIES

yeah

__________________
1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)

but the entire MS system seems to be a whole lot cheaper than replacing all the electronics with original equipment...

the engine was submerged, the MS is just a last ditch effort to salvage the engine... if and when the submerged electronics fail.

when that happens its gonna be a diesel swap...

__________________

85 190E 2.3(SOLD)
86 230E (-->300D) sold
87 300D (-->300TD) sold
68 250S w/ a 615 and manual tranny (RIP)
87 300TD (SOLD)
95 S280 "The KRAKEN" (Turbo 2.9 602 transplant) traded
86 190E 2.3... current project