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Also look for any place that the wiring harness can rub the car body. After a while you can wear through the insulation and get a short when the engine twists over under power. In your case, though, that's probably not the problem as a short to ground will usually blow the EFI fuse.

Did you mean CPS?

Those two clips that attach the loom to the intake manifold turn to dust after about 15 years. You can buy new ones from Toyota for $5 each. p/n 82711-30070 When I bought mine there were 8 left in north america. and you can also get the brown diag box engine wire clamp (special order from...

This test compares a MK4 TT pump versus the high flow walbro. The supra pump sucks about twice the current as a Walbro, so upgraded wiring is advised.

I use blue loctite on these bolts. Torque them to 22in-lbs and they will not come out until you put a wrench on them. If you overtighten them you can break the cam cover lip, or strip the threads in the head. Neither is desirable.

Cam cover Stainless Steel (type 316) Socket Head Cap Screws, M6x1.0 30MM Length qty 12 to replace the phillips head stock screws. Bought from Mcmaster-Carr (p/n 92290A332) min order is 25

The theft computer also includes a relay for the starter (inside the computer). To test it you can bypass it by disconnecting the blue-orange wire at the starter relay (terminal 3) in the right kick panel and grounding terminal 3 of the starter relay directly.

Use either. #6 is obviously alot easier to get to with the cover on.

EPA estimates for the turbo are 18 and 23 (City / Highway). I have never managed to get over 23mpg myself.

If we keep going down this path the thread is in danger of becoming ITAR restricted! :)

Agreed, the head looks fine. The journals look typical. The grooves should be in the soft babbitt stuff only. I can't tell from the photos if they extend into the steel, which would be a problem. Since you can't inspect them yourself, I would suggest that they polish the journals and then...

Check your overflow tank. Does it have a nice oily slime covering the walls? If so, you've got oil in the coolant = BHG.

Cam cover Stainless Steel (type 316) Socket Head Cap Screws, M6x1.0 30MM Length to replace the phillips head stock screws. Bought from Mcmaster-Carr (p/n 92290A332) min order is 25. There is a fuel-pump jumper on the diagnostic block that allows you to run the pump manually. In this case...

I found it easier to remove the bolts holding the elbow to the turbo. Those three bolts on the elbow to DP were on so tight I broke a socket getting them off using a breaker bar once I had the downpipe and elbow off the car.

code 14 is a failure of the IGf signal (ignition fail). When a coil pack is fired the igniter senses the firing and generates an IGf. It's a confirmation spark occurred. If the ECU doesn't see the IGf signal it will kill fuel to the two injectors fed by that coil and the engine will run badly...

I think that is an M8x1.25. The standard low-grade bolt torque for that is 9 ft-lbs.

If you replace those then also replace the oil pump drive seal at the same time.

The LS600 has six figure MSRP! Toyota had to redo all their dealer computer systems to handle 6 figures because of this car. Apparently it was a major undertaking.

There is nothing majorly wrong with the 7M head. The cam journals have a soft babbit coating that is soft (and has a strong sulfur smell). It is not aluminum scraped from the engine, not sure where you got that idea. The cam journals should wear smoothly. If the bearings are out of spec...

The only thing that should look bad is the cam journals (on the camshaft). The cam bearings in the head should look smooth as glass. We need pictures to make a better call. Take a look at the pictures in this thread. Print them out and go compare with what you have at the shop...