MS - Stock question
I am putting MS on my daily driver in prep for a turbo. If I wire the MS to the stock ECU harness, leaving the stock plug, can I just switch back and forth between the two ECUs until I get the MS tuned, or will that mess things up?
If I understand correctly, it should be fine so long as I only have one ECU plugged in at a time, and I'm using all the stock sensors. (All this is until I get the turbo on, of course. Once I do that there is no turning back) I only have the one car, and if I need to go somewhere before my tuning is complete, it would be nice to be able to do that. If not, I'll have to borrow somebody else's car. -Corey |
Originally Posted by skidude108
(Post 251109)
I am putting MS on my daily driver in prep for a turbo. If I wire the MS to the stock ECU harness, leaving the stock plug, can I just switch back and forth between the two ECUs until I get the MS tuned, or will that mess things up?
I only have the one car, and if I need to go somewhere before my tuning is complete, it would be nice to be able to do that. If not, I'll have to borrow somebody else's car. http://www.boostedmiata.com/MS/harness/direct_db37.jpg The other option, which would make the in-car portion of the wiring even simpler and cost only a small amount extra, would be to build yourself a plug-n-play harness as described by Braineack in This Thread. |
if you want make the PNP addapter harness with switches to swap between ecus for fuel and spark. I didnt end up putting switches in cause it takes me <5 minutes to swap between ecu's
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