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Um, that's not how stuff usually works...

Great minds think alike. Why such an obvious conclusion about the valve needs great minds is a mystery ;)

Take it apart and test it. See if the pintle moves or if the bearings are frozen. That said if stuck it's not the source of your surging. Remember, unplugging even a good ISCV simply freezes it in place. Thereafter any large changes in idle obviously can't be valve related. And I said the TEWD...

Well, his question still needed to be answered although a quick look at the TEWD would have done it. While I'm here an interesting thing about AC idle up is the use of timing advance to prevent rpm sag while the valve is stepping. Iirc it's the only idle up function that does this.

If only oil was his problem...

Why so complicated? Leave stock wiring alone. Use stock headlight power to pilot new relays which will be located near lamps because that's where the (reused) sockets remain. Reduce fuse size in JB 2 accordingly. Wire new power for lamps direct from source using the removed 15 amp fuses. Done...

It is but only to shut the thing off. The idle strategy operates as 3p says except he is no doubt deliberately simplifying it. In a nutshell the ECU is programmed with a set of target idle speeds for various conditions. By monitoring engine rpm it steps the valve open or closed until the current...

Just use 10 awg and be done with it. What I did. I assume you're piloting the relays using the stock headlight wiring?

Oh. Well. In that case carry on...

Oh that's low. Definitely south of the border ;)

I called mine "the car" or "my car" because that's all it was. I'm sure I called it other things at times but none of them were flattering.

It won't Monsewer but I seriously doubt that's his problem. It's very likely something far simpler. Unfortunately the OP's lack of understanding about how the system works coupled with the poor diagnostic info he's supplying isn't helping matters.

Huh? My input has been very limited because I knew from the beginning this thread would be a lost cause. The signs are all there.

Good grief. Why is this thread still alive?

Although I never did such things I'm aware many kids do. It's understandable in a twisted way. What I find interesting is them boasting about it as adults.

No. Magicicada do not occur in the West. And some of you were sick bastards as kids. Did you pull the wings off butterflies too? Here's hoping that's changed.

^ You might want to peruse the guy's post history. OP: Can't tune a broken car. Remove the SAFC or set it to zero and fix what's wrong first.

^ Huh?

Well that was an easy fix. Apparently the CC actuator's size and valve design (low loss 20 hz duty driven proportioning) doesn't require a large tank volume. In hindsight the turbo system's tiny pump kind of implies that. On the other hand many Toyotas employ an all-electric motorized actuator...

I do. Rarely drive it these days though due to a dislike of the attention it brings. Don't like dealing with the idiots. Besides, I'm wanted in 11 states...