Is ICV required MSPNP?

[Saascat1]

why? I don't run one in my '85. It's useful for two things - cold starts and load compensation for a/c. I don't run A/C and unless it's freezing cold outside, the car will idle almost immediately after starting. When it's cold, I have to give it a little gas until it warms up. I left it out of this build for several reasons. 1) I didn't want to deal with the gooseneck on my m50 under boost 2) I run three coil drivers for wasted spark and without the ICV transistor, all the coil drivers mount to the internal MS heatsink 3) it's one less thing wire and tune. I'll be adding it back in on my new build since the objective is to move towards a factory-like DD.

Thanks Cyrix2k,

That answers my question quite well as the throttle body I'll be using does not have any facility to mount an ICV.
I have bought a "Quadspark" ignition driver from DIYAutotune, it is an external driver with a built in heatsink, to run their IGN-6 coils, essentially a triple pair. With all due respect to Whodwho, do you run sequential ignition with your setup?

Thanks to all contributors

[Cyrix2k]

You don't need it but you definitely want it.

why? I don't run one in my '85. It's useful for two things - cold starts and load compensation for a/c. I don't run A/C and unless it's freezing cold outside, the car will idle almost immediately after starting. When it's cold, I have to give it a little gas until it warms up. I left it out of this build for several reasons. 1) I didn't want to deal with the gooseneck on my m50 under boost 2) I run three coil drivers for wasted spark and without the ICV transistor, all the coil drivers mount to the internal MS heatsink 3) it's one less thing wire and tune. I'll be adding it back in on my new build since the objective is to move towards a factory-like DD.

[nando]

You don't need it but you definitely want it.

[whodwho]

You do not need to run one but no real reason not

Closed loop is basically you set a target idle rpm and the ECU varies the ICV to keep at the target rpm.

You don't need a cam sensor as you wont be running sequential spark with that system or that coil on a 6 cyl

you will be running wasted spark with that coil and will need to run 3 ignition drivers, that coilpack has three coils that each fire two plugs at a time, one on compression stroke and a 'wasted spark' on the exhaust stroke of the 2nd cyl.

[Me+SPEED=]

Read

http://www.megasquirt.info/

Read it again
Then read some more

[Saascat1]

Hi All,

Sorry if this is a dumb question........I tried to find info by searching this forum and had no luck.

Do I need to still run a stock ICV? Can someone explain "closed loop" idle for me?

I will be running wideband O2, IAT with AFM delete and inbuilt MAP sensor, I will also be using both a crank trigger, and a cam position sensor for sequential ignition with DIYAutotune 6 pack coils.

And while I'm asking dumb questions............ Wasted spark?

I appreciate any help on this.

Cheers