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42 - Speed sensor. It's in the speedo...is your speedo working? 43 - STA is the starter signal to the ECU. It's used to activate start parameters for the engine. Did someone do the starter relay "mod" on this engine? 51 - IDL signal for the TPS...tells the ECU when the TB is closed and...

More info: http://www.cygnusx1.net/supra/TechTips/vacuum_gauge_readings.aspx

And, exactly what make plugs?

It's best to use the stock pressure sender location. For a temp sensor, a T on the return line to the block is fine. Keep something in mind about shimming the filter relief valve for the cooler: Higher pressure is required for oil to flow through the cooler circuit...this means you will...

Not likely it's the pump, but it could be the drive gear/shaft. Check your oil pressure with an external mechanical gauge at the sender location. If the noise is still there after running with no accessories, you know it's in the engine. If it disappears, add the belts on one at a time...

Have you removed the accessory drive belts and run it?

Codes 41 and 51 are likely related...both are the TPS. Either the TPS is bad, the connector is bad, or the wiring to the ECU is bad. Code 43 is likely related to the "starter mod" the PO did. The ECU needs an STA signal from the starter to activate fuel parameters for start.

You mean "steering wheel" right? ;) Plus, what does this have to do about a tech subject for the 7M-GTE engine? Pay attention to where you post...thread moved.

If you change the screen/fluid, you might want to read this: http://www.supramania.com/forums/showthread.php?t=3179 I use Castrol Import ATF (Dex III) in mine. If you do the change per the link above, you'll need 10 quarts.

Post up side-by-side pics.

Not a question specific to the 7M-GTE motor...thread moved.

^^^ With no kinks ;)

Sizes of the freeze plugs vary a bit...the OD of the plug I have is 40.39mm. Makes sense for a press fit in a 40mm hole. Here's the dimensions: A = 36.8mm B = 40.3mm C = 45.7mm D = 6.5mm E = 3.4mm F = 6.6mm Be careful on the A dimension, you do not want it too tight. When the plug...

I'm assuming you are using a Turbo ECU & harness as well.

Considering the way the seal/bearing is made, not a lot to go wrong unless there's excessive wear. Assuming that the wheels are in good shape and are balanced. Side-to-side shaft play is the killer. Rust on the internal shaft would be my concern...fill the oil passage with PB Blaster and let...

And then there's the genius that thinks running a JDM tyte high pressure cap is a good idea :nono:

Dumb is Strong With This Thread

The cap does regulate pressure....it's spec'ed at 10.7-14.9 psi. It's plenty to force out an improperly installed plug.

Might apply to a guy who doesn't understand how it functions...works great for me ;)

A freeze plug is a press fit...the diameter of the plug is slightly larger than the hole in the block. The machined sealing surface in the block is recessed a bit...some more than others. If you look at the installed plug, the lip should be even with the machined surface...if the plug is intoo...