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

how are all you guys doin? im new to mega squirt been reading about the ms 2 for about 6 hours, and i still have unresolved questions. my set up is a mpfi system that consists of 60lbs siemans injectors, edelbrock victor e efi manifold, a throttle body elbow with a ported LS1 thottle body. my ignition system is MSD 6AL-2 with a 85551 distributor (just a pickup in the dizzy) i plan to run the mega squirt 2 but i dont want to allow the mega squirt to control the ingnition. do i just hook the tach output to the relay bord like the MS1? also are the any mods that i have to complete inorder to use a stepper motor style IAC?

Sure, that setup will work fine with MS2 as well as MS1.

You'll need to have the stepper IAC jumpers from assembly step 22 in place. Most preassembled MS2s have these by default.

thanks for the help! also im running an AEM UEGO wideband, i would use the out put wire off the o2 and connect it to the relay board?

also right now i have a b&g 2.21 version (ms1) and plan to upgrade to the mst chip. im gussing i still have to install the jumpers

prostreeted49 wrote:thanks for the help! also im running an AEM UEGO wideband, i would use the out put wire off the o2 and connect it to the relay board?

You got it. And yes, you'll need to add the jumpers when upgrading.