We have MegaSquirted (2.2 with Xtra-code) a BMW E30 2,7, but the original tachometer got its signal from the now removed Motronic box.
Can i just hook the tachometer directly to the negative side of the ignition coil?
Tach-wire BMW E30
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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Vezzel 309 GTI16
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i got the same issue...
what tacho output ? which pin on ms connector ? can you be more specific ? can i connect it directly or do I need to wire it through resistor/diode ?
what tacho output ? which pin on ms connector ? can you be more specific ? can i connect it directly or do I need to wire it through resistor/diode ?
BMW, 1985, E30, 325i, 2-door, 5spd. Lots of custom work. Turbo build in progress: http://www.e30tech.com/forum/showthread.php?t=55733
easy for you to say.
I run MS2, so i dont have tacho pin out (AFAIK)
basically i need to know what kind of signal e30 tacho needs. is it +ve every TDC or every single crank revolution or what.... or is it getting grounded or d'oh! ?
BMW, 1985, E30, 325i, 2-door, 5spd. Lots of custom work. Turbo build in progress: http://www.e30tech.com/forum/showthread.php?t=55733