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The stock ECU drives the ISCV stepper at 8ms intervals. 200ms seems ridiculously slow.

You should use a two terminal sensor, like the one for the 7M ECU coolant sensor. I don't know what the 1JZ sensor looks like, but it seems likely it would be a two terminal style as well. Do not ground the rad or heater core. If the rad is grounded, you have provided a current path through it...

That seems normal now. In your post #6 you claimed it was all working properly?

What you are showing there is MEMS, which is more like a photolithographic process, similar to IC fabrication. We do a lot of MEMS work here but it has severe limitations when it comes to the what you can do in the vertical dimension. That is the beauty of these nano-mills, as they achieve close...

Check that the coolant sensor is within spec http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=113 Also check for leaks in the intake, spray brakekleen around gaskets and other points that could leak and see if engine idle speed/quality changes.

Yeah, your reference RA-23 was to the pinion gear on the nose of the differential. The side gear shaft is held in by a circlip. A slide hammer gets it out. I made a very short slide hammer out of a long bolt because all the commercial slide hammers I owned were too long and tangled with the...

The hammer and chisel is to remove the bolt stakes. What step are you stuck on, removing the bolt?

The check valve is only used to prevent boosted charge from being recirculated back to the turbo inlet, it will have no impact on your idle problem. My car's dashpot no longer offers any resistance, but I have not experienced any idle issues with it in that condition. The TPS IDLE switch needs...

If your plug is leaking, chances are it was overtightened at some point in its past and the pan flange has a dent in it right where the notch is on the internal threads. Run your fingers around it with the plug removed and you will feel the dent if its there. If it leaks with the regular plug...

W7, bourbans? I'll pour myself a bourbon and go find out what that is! Flateric, I don't work there, just send them checks so they can send us some nice parts.

I'm getting confused about the voltages. Is the 3.5V the Vf voltage (referenced to E1 and not TE1), or something else? Anyway, a Vf of 1V or 3.5V is okay, certainly not the cause of your problem. A stumble after boost typically would be a leak of metered air, especially if this stumble only...

That's a nice set of photos. Never realized the connection between the MK4 tail lights and the 2000 Gt before.

Check for damaged insulation allowing the engine wiring to touch metal engine parts as well, especially the O2 sensor wire and the loom where it goes past the EGR valve.

We have a program that is using a Mori Seiki NN1000 &#8220;Nano-Mill&#8221;. This is a 5-axis nano CNC machine capable of holding tolerances to submicron accuracy and producing mirror surfaces without polishing (<10 nm Ra). Position sensors have 34 pm accuracy. There are four of these in the...

http://www.supramania.com/forums/showthread.php?41543-Fix-for-dripping-differential&p=571418&highlight=washer#post571418

The problem with that cutout is that if the bolt is overtorqued by the jiffylube bandits it creates a dent in the pan at the cutout and forever leaks afterwards.

Not true, the original inventor (Reg Reimer) of this mod used a special air bypass screw in the AFM to tune things up. Later it became popular to go with an AFPR instead of the screw. The piggybacks are definitely not needed. Rather than ignore Vf, you should look at it and see if the ECU...

What is your Vf voltage under cruise and idle conditions?

Correct 16814 is internally amplified (has a big finned heatsink on back). The 16815 is externally amplified. No sub outputs, although you could do that externally. No idea about changer, but there is an additional 12 pin connector that supports steering wheel controls. It is possible...

Its an interesting experiment. I wonder how long the injectors will last with the resistors bypassed.