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The contacts that carry the current are worn slightly. You vibrated it just enough to give continuity. The time will come.

It depends on the model. The modulator is a mechanical device that operates the EGR valve. I guess not having one simply means the ECU has more direct controll. I don't have the factory repair manual or EWD to look at. I guess I will have to get one from ebay.

And now you have half the reason on why there is no new Supra. "Why would you want that?", pretty much sums it up.

On the subject of radiators, those new aluminum ones do not cool better. The R value is better for transfer with copper/brass. Which is why it is used. Aluminum radiators are now used for weight reduction. You can make a bigger radiator with more radiation capability, without it weighing more...

There is not an adjustment of idle with a screw. You can move the stop, but the ECU will simply adjust to the increase or decreased airflow. Set the gap to specs.

I think a single GT35R on a 1UZFE would just haul ass off the line.

Packaging. Many cars may not have room to run the manifold or crossover pipe under hood to a turbo which takes up space. So tiny twins right on the manifold are used. Mercedes makes some heavy duty powerplants. Nothing in cars mind you. Tractors for hauling trailers. The V6 has a single...

The old age some have of twins spooling quicker is completely backwards. I don't really know where it comes from either. You have half the heat trying to push each turbine. Apples to apples, if you add a second turbocharger to any setup, it will take longer to spool. You can not say, well...

Why... the intrest in a Previa?

The R series transmission is in 6 cylinder trucks.

(see attached .pdf) Read all of it, but that covers the basics. It has been a while since I dealt with any of this. But the text only mentions the ignition timing change.

A340e Ftw!

Toyota uses oil squirters in all turbo Supras sold in the States since 87, but not world wide. They are common on any engine with high cylinder pressure such as turbo Diesel powerplants.

Double post

Ignition timing is advanced to restore some of the power loss. If you are using high enough octane fuel, you will not ping, but the mixture is not optimal when the flow command is given. edited for spelling and content

Any resolution?

How does the car run? Accerlation is off from where it was, or it just won't do a burn out? By the way, you can wear your tires down to the point that they spin without much noise and don't lay rubber. So nothing may be different. Or you are ruining your transmission and it is slipping.

You could always start by checking for blown fuses labeled IGN and EFI.

Yep, Toyota uses the front sensor to keep the cat warm, the back is to make sure the cat is working. They are the same logic on all US cars.

Solenoid, not cylinoid...;) (sole-eh-noid)