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What turbine housing did you get? If you got an undivided T4 look for a drewgo, they're still around. Kaizen had one for sale recently, but some lucky SOB got it.:icon_bigg

Right, and the link I posted keeps the unipolar design. I appreciate the information you have supplied, I just wanted to point out there may be another option. When you switch from unipolar to bipolar, heat is increased in the windings. 1jz IAC's seem to be prone to failure, I am just trying to...

So, I was digging through some MS info, and stumbled upon this. http://www.diyautotune.com/diypnp/apps/n52/usdm-toy-supra-8384-5mge-mt.html Now this is for an 5mge, but it has the same 6-wire stepper IAC as the 7m and 1/2jz. So it would seem that they are controllable in stock form. Randy...

No. Absolutely not correct. Some engines work that way, just not on a supra.

Welcome.

Pull codes dude. And quit yelling. http://www.cygnusx1.net/Supra/TechTips/engine_error_codes.aspx

Read... http://www.mr2.com/TEXT/O2_Sensor.html

Repost. http://www.supramania.com/forums/showthread.php?155475-MKIII-supra-posters

Also, the 2V reading you are getting. This might be the actual reading, or it could be an "average" reading your volt meter is coming up with. As the signal is a digital signal, from 0V-5V. like this, Volt meters aren't much help with these kinds of circuits.

IGf is a signal wire from the ignitor to the ECU. This is what needs to happen to make the ECU happy. 1. ECU sends a signal to the ignitor to charge and fire a coil. (IGT circuit) 2. Ignitor charges and fires that coil (coil primary circuit) 3. Ignitor sends a signal back to the ECU, confirming...

Unless your going to offer a way to tune it, leave it stock and just get it running for the guy. No reason to create issues.

The 10 bolt "universal" look, kills it for me.

^Well i have a new winter desktop. Looks like so much fun, sadly here we use salt to clear the roads, so that kind of fun in the sup, is out of the question. Mine are up because I fried my headlight control box, and its a pain to wind them up and down.

What part are you trying to rebuild? Weir is good to beef up the clutch packs, if your making a "one tire fire". Or is it making noise?

I think toyotanos has installed new stock boots, maybe PM him? I remember something about a clip that was tricky.

Does a magnet stick to it? On behalf of the entire midwest,,,,, lol

If the check engine light comes on for a few seconds the shuts off, that's fuel cut.

Wow dude, just wow.

Try putting a jumper in FP and B+ in the diag block.