You sir, are a goddamned legend for this. Yes I did spend what felt like an eternity hunting down and finding a series one SI board (my car came without one entirely) but this saved me from doing my own resto work on it and fixed my temp gauge. Truly, thank you and thank god I found your video while looking for reference images to restore from.
Great video. You can also cut and bend a paper clip and use it to jumper between those two slots. A paper clip seemed to be the perfect size and the slot grabbed it tightly as if it were a pin. Worked perfectly.
It works, just did it now. And now the rev tacho does not wander up and down slightly like it always did previously. So on the Series 1 E30, the only thing the SI board does is control the service lights? Jeez I wish I knew that a few years back, when I spent a lot of time having my SI board re-soldered and repaired, got new batteries e.t.c - and the service light globes had already been removed on my car anyway! So I could have just bypassed it. Last week the rev and temp gauges both started jumping around then going dead, then alive again. Using this trick to bypass the SI board fixed it. Edit : I did lose my park brake light. It does not even come on when turning the ignition on, like the one in this video does at 3:40. I must have knocked something...
Really good to hear Yohan! Possibly bumped something, but also the handbrake switch at the handbrake lever which activates the light can be a little dodgy I've found.
Cool think ill do this. What motor do u have in there? Could u show me what coding plug (black T stick) do u have in there? Ur car is idling a bit high
Hope it goes well for you. The hardest part for me was soldering the wire on, it can get messy quickly if you arnt careful and jump the next pins over.
Welcome . I have a problem with the rpm gauge and throttle gauge. Sometimes only the rpm counter works. The battery has been changed. And the problem still remains
Thanks for the video it helped me a lot, maybe you can tell me the color code of the Fuse Resistor next to the batteries, mine its blown and I can't see the color no more. I will really appreciate the help
The contacts are usually connected through the SI board via pins. As far as im aware they just go through the SI board without actually doing anything. By bridging the contacts, you remove the need for the SI board whilst retaining the functions of the Tacho and temperature gauge.
Here you can see differents series 1, series 2 SI board differents, there was 2 different series SI boards in series 1 e30 www.bavrest.com/technical-articles.html?fbclid=IwAR186PBZCAteTfwkiriLH9yOWEvQj4BCUbF07bjGj1goIydD5Zt_j9OHpxw
@@e30repairs9 cool, it works. Just the temp gauge is marking a bit above. I will try to apply a resistor but I still have to figure it out how many omhs. Since my si board is completely trashed I can't get a reading. I have a fase 2 si board but I think the resistance is different.
I just measure, I think the series 2 board i found 2 main resistors on the temp gauge circuit, a big one measuring 70 omhs and a small one with 1496 ohms. On the series one si board, it's so badly damage that I can't follow the tracks.
@@revenblood hey Claudio. Sorry im a bit confused. Is the soldered connection with the jumper wire good? And you're issue is the temperature gauge is reading slightly high?
