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Originally Posted by sharkey
well, i spent most of yesterday looking at the megasquirt, and getting the sns extra into megatune, and all i can say is wow. there are a lot of things i was vert confused on because all i had before to look at was megatune beta and the squirt n spark program. now that its all in one, its way easier to understand. i was also going through the tuning instructions and comming up with a base tuneup so i can get a feel for it.
im likley going to go megasquirt. after a bunch of reading, i discovered all they are doing with the iac is using it as a fast idle valve, they dont have programing for rpm feedback idle, as they dont want any programing glitches to be responsible for cars crashing due to the iac not closing. after reading all that, im more inclined to just run the fast idle valve.
my next thing is do i build it myself or buy the assembled version??? i can solder to circuit boards, i can follow instructions, but im not realy good with electronic components (lets call it a lack of experiance). are the instructions easy to follow and everything clear??? or do you need a degree n electronics to figure it out??? there is a $160 difference between the 2, if its not to hard, id like to assemble it myself. a guy in my car club has just done a megasquirt 1 v2.2 on his turbo ecotec as a fuel controller, so i may be able to give him a couple bucks to borrow the stimulator, saving me the extra cash.
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The only nice thing about having the stepper IAC is you can adjust your idle in 10 different steps based on coolent temp. If you go with the fast idle solonid you only get two choices (high idle or idle), so if you want to adjust it you have to have a screwdriver and manually adjust your throttle plates. They are also talking about making the idle dependent on rpm and engine load, so if your a/c turns on it will up the idle.
I would not call myself an electrical expert by any meens, and I built my own. The instructions are very easy to follow and I didnt even have a stim board. I think if you build it your self you have the ability to fix it if there is ever a problem. I say save the $160 and save another $40 and buy a wide ban with the money
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I would also go with the newly revised V.3 board. I has built in fuses on the 5v output circut to protect itself, and a few other things built in. When I was installing mine I accidently put 12V to the 5V out circut and popped a diode. I went online found the wiring diagrams and went to radio shack got a new diode and was up and running in no time.
Here is where I got my MS kit and also my wide ban o2
http://www.diyautotune.com/catalog/m...bled-p-59.html
Linear Mode
