www.MSruns.com read only forum (Jan.15,2018)

The factory IAC is a 5 wire and isnt compatible with the MS2 stepper chip. It would be alot of screwing around to design a circuit to run it, so Im just going to cnc a block to use the GM iac in the toyota postition. We may end up with a new plenum anyway so I may be able to just wait until the LS1 ...

So the tune is coming along really nice. Im ready to enable wall wetting and try and get rid of the quirky afr's. Next on my plate is the IAc. The factory one is a 4 wire, but when I look up the diagram, it has 12v coming from the efi relay thru each pole and to the ecm. It's listed as a 255position...

Spent yesterday driving the car 50+ miles around the hills tuning drivability, and eventually some nice 3rd gear pulls. The car is running great other than a few small quirks, some stalls when coming off revs and hunting idle after a boost run. Some of that is the overlap I have on the HKS264's, som...

94 MK4 Supra Turbo. 76mm borgwarner extended tip, hks header. I removed a HKS vein pressure converter and uni-chip and installed a MS2, V3 board using a existing T-harness to cut in. (factory wiring stays intact as does pcm) Keeping the factory PCM in the car keeps all existing functions working cor...