Part 1: BMW 635csi ECUmaster Classic Install

[@sheldonarkinstall2784]

Great work! I'll be adding EFI (As part of a Supercharger conversion) to my M10, so this project will assist me greatly. Thanks.

[@safetythird4555]

Thanks! Good luck with your project!

[@mjnajr]

Great video. Your manual swap video helped me out with my e28 conversion. Glad to see another video from you.

[@safetythird4555]

Thanks! I'm happy I was able to help.

[@Mkid24]

Where do you live? Can you do this too my E24? 😅

[@safetythird4555]

I live in Texas, but I am not a shop. I only work on my own vehicles for fun. Sorry! 😐

[@dsch6367]

The temp sensor (may be1 or 2) on the rad tank control the electric fan in front of the rad. If there's 2 of them then you have a 2 speed fan. The temp sensors behind the t-stat are for the ECU fuel control, display, and if there is a 3rd one, for starting injector control.

[@safetythird4555]

Thanks. Yes, I figured those out as I was removing the stock harness. 1 for gauge, 1 for ECU, 2 for Aux/AC fan, and 1 for the start-up injector. Initially seemed overkill, but it makes sense now.

[@neolskum8286]

Nice video. Taking notes for an 81 conversion. I was wondering what it would take to address programmable ECU and "Presto". I wonder how I did that.? Looking forward to the completion.

[@safetythird4555]

Presto - your wish is my command! :)

[@zackypoo9261]

the idle control valve from a m50? it’s hard trying to find the early model m20 icv. can i get a close up on how you converted it? it’ll save me lots of money

[@safetythird4555]

The only way I am able to get the M50 ICV to work on my M30 is that I am controlling it via the standalone ECU. Are you planning to use the stock ECU and wiring, or aftermarket?

[@bmwhobbychanic]

Hi, what base tune did you use? I am trying to decide on ecu brand, and I feel like ecu master fits the bill but was wondering are there any base maps for m30. Thank you!

[@safetythird4555]

I didn't use a base tune, but it was pretty easy to get a base map using the engine parameters, like capacity, fuel injector size, etc. I could also share my map if you ever need it.

[@wolz256]

The throttle position switch from an automatic BMW is sequential. Manuals like yours have just 2 switches inside

[@safetythird4555]

My E24 is originally a euro automatic transmission model, so my TPS had the 2 switches. That's why I had to change the throttle body to a US spec automatic version so I could get the variable TPS. The US automatic throttle bodies had the 2 switches and a separate variable TPS for the transmission signal.

[@SupermildCCOV]

sick video thanks - mine needs a new ecu weighing up a barra conversion instead tho

[@safetythird4555]

A Barra in this chassis would be a torque monster. The engine bay should be long enough to accept it, however I'm not sure about the height.

[@JeffChester-jq4xq]

8 have 4 of these 80s..6s... have you turbo'd.. this car yet? With this ecu?

[@safetythird4555]

Nope, haven't turbo'd. It'd be fairly easy to, but not what I want for this car (yet).

[@UpcycleFactoryPreFab]

Is this ecu applicable to an 85 e23 735i m30b34 ?! 🤔🤔🤔

[@safetythird4555]

Given the same year (1985) and engine (M30B34), the ECUs might be same. The process for replacing it with a standalone programmable ECU should be the same.

[@bavariansharks7149]

👍

[@safetythird4555]

Thanks!

[@rrrandomman07]

Great series. I have an e28 with a 302 running a holley terminator x. Im thinking about converting my harness to run an m30b35 and this was inspiring. Are you on instagram?

[@safetythird4555]

Thanks! I hope these videos help. I'm not on Instagram 😔