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Also, after a drain and refill it takes a while for the new oil to work its way between the clutch plates.

Congrats.I think anyone with light load miss should take a look at their EGR. The system is very reliable, but after 25 years things will go bad.

128psi is the minimum spec, so your numbers are borderline but not an outright fail,especially if you had the throttle closed during the test. How sure are you that the gasket really is an MHG and that the block was properly prepared for one? Your symptoms are pretty typical for a small...

Use this. Makes pressure testing real easy. https://actron.com/content/banjo-bolt-m1215

The VSV should prevent any EGR actuation when cold. Might want to check if you have vacuum off idle when cold at the P port indicating the VSV is bad. The test is documented here. http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=EC&P=17

Had a driveability issue that would cause the car to misfire at light loads. For example, revving to 1800-200 rpm would result in a bad misfire. Cruising at light throttle would result in a jerky feel although it was hard to actually hear the misfire, and throttle response off idle was poor. On...

^^^ Yes, the piston squirters need to be on everyone's rebuild punch list

The "shimming the oil pump for better idle pressure" is a concept that needs to die.

Yes, its normal. Your problem lies elsewhere.

Cutting out the old frozen bolts and bushings is straightforward, I used an angle grinder with a thin (0.035") cutoff wheel. You can reuse the arms and just push in new bushings. Have the old arms sandblasted and powder coated if they have surface rust.

If it doesn't have squirters its not a GTE block, it's a converted GE. The GTE comes with a larger oil pump to make up for the squirter loss.

The fuse boxes are connectorized so they can be replaced. Space is tight so its a little tricky, but doable.

Just get an estimate of the parts needed from him. Then compare with this. http://www.cygnusx1.net/Supra/Library/EPC/291420/catalog.aspx?F=1603&P=2

Nice. thanks for sharing.

89249-14010 $93.65 Switch Supra TEMS

New TEMS switch installed.

$3k ish.

My IPT rebuilt A340E has arrived.

You need to trace the CPS wires and check for continuity. Very common failure is near the CPS where engine heat makes the wire insulation brittle and causes the wire inside to break.

My vote is bad COR or no power on STA wire. If latter, should set a code 43 one would think.