MSefi.com read only forum (Jan.15,2018)

I replaced the throttle switch on my 93 1.8L mx5 with a throttle position sensor from a Subaru liberty rs turbo, they are almost a direct replacement for the mx5 switch, only modification being I had to tap two threads into the side of the throttle body, if that helps

Just been reading up on optical triggers and it sure looks like it, but still doesn't answer the question of what wire I should connect pin 24 to, I have narrowed it down to either the g/y or g/b wire coming off the crank sensor

Explain fully what you want to do. Do you want MS to control the spark mapping? What is the existing system, and on what engine?
I want the ms to run standalone for fuel and spark, it's running a Kettering system that also has the crank angle sensor built into the distributor, here is a copy of ...

Cheers for the info, sorry for the long period between replies, the wire would have to go to the crank angle sensor I have inside the distributor, correct? Alternatively can I get away with just wiring up to control the coil directly and leave it at that?

Hey guys, im a bit stuck setting up spark on my ms2
Im wanting to allow the distributor to control timing, can someone help me out?

hey guys,
Am trying to convert my 04 rx8 to megasquirt, only issue i have run into so far is that it doesnt have the usual accelerator cable, but is fly by wire, am wanting to keep this, as i love the instant throttle responce. can anyone help me out or point me in the direction of where i can find ...

hey guys, i am currently making a tune for my nissan exa, and was wondering what would happen if i entered a larger flow rate for my injectors? would it just end up starving the engine of petrol? or would it actually work? Im sure its a dumb question but it had me thinking

Hey guys, have decided to go away from the quad coil setup, just seems a bit to complex for me atm, I was reading the megamanual earlier on how to set up ms2 on a kettering system, and admit i am still a bit confused, would i be getting a trigger from the cas and controlling the coil directly? or ...

thats a very good point, it is on the cards to go a wasted spark setup, would be interesting to find out how difficult it would be to get it set so i can run individual spark without a cam sensor, maybe 4 trigger's on a trigger wheel or something similar

Hey guys, am busy investigating ignition system's for my 84 exa, and was wondering if I was to use to quad spark ignition driver, that i could simply run single spark plug leads from each cylinder to each coil and have ms2 control the spark?

trakkies wrote:All they do is raise the idle speed slightly for cold start and warm-up. You could do this manually with your foot but it may be inconvenient.

Thanks mate, its purely a race car, so it gets warmed up before going out on the track

Hey guys, have just finished building my first ms2 board, and have some questions relating to idle air control on a mazda miata mx5, i am going a bit unconventional with modifications, as I have turbocharged it, and installed quad throttle bodies, do i still absolutely need the iac valve? or can i ...