So I've come to the concluion that I want a standalone ecu, and dont want to spend $1000+ for a used AEM.

I'm looking at the new MS3 with the MS3X board on the V3.57 mainboard.

I want to use the following add ons with that base.
- 4 bar duel map sensor.
- idle control
- Factory ecu connector (to make it a complete standalone)
- GM IAT
- Boost solenoid

Now one with questions...

- How is the idle control with the added circuit?

- What do I need for it to read the EGT, besides the sensor itself?

- Is this realistic?

Can I ask why you don't want to use dsmlink?

The cost. I have to buy a 95 EPROM ecu, then socket it, then buythe dsmlink. All thus about $800-900. Ms $400...

Originally posted by Wishiwasfast- How is the idle control with the added circuit?

You're talking about the stepper motor IAC control, correct? If so, it works pretty well.

Originally posted by Wishiwasfast- What do I need for it to read the EGT, besides the sensor itself?

You need a specialized circuit to amplify the minuscule signal from the thermocouple. With the right parts, you can build one yourself or you can order an pre-built module. Google "megasquirt EGT interface" to find more information.

Originally posted by Wishiwasfast- Is this realistic?

Yes, but you should consider the cost. An MS3 ECU, plus the MS3X expansion board, costs quite a bit more than $400; more in the neighborhood of $600 to $700 for everything you mentioned. It's still cheaper and more versatile than DSMLink, but it's not quite as cheap as you expected.