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You be corn-fuzed. Like I was when I decided to try and help you. I'm ok now though.

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=CO&P=2 Yes, they're for the core and it can be bypassed. The capped tube is used on right hand drive cars.

The touching of those two wires together will not cause anything to blow. Check to see if the main relay is energized. If so check for 5 volts on the blue/red to ground.

No. No as in the window and seat question, not no as in can you get some help.

^ Agree although it's been done. For example all the lines (including the injectors) on my DMC-12's Bosch CIS are barbed and they run at 70 psi. Has to be the proper hose though. At minimum add a screw clamp for backup but best to avoid it altogether.

Primum non nocere...

Maybe I don't understand but why not just buy some fuel rated hose?

Nothing a little RTFM won't solve. Yeah they did...like teach science in school.

Not much to go on but bad AFM, loose connection, or bad harness. Check the AFM first and re-seat the associated plugs and relays although there are better ways to pinpoint this problem if you're competent using a DMM.

That code should have illuminated the MIL every time the car was accelerated and kept it on until the key was cycled. Did that go unnoticed?

Well shoot. Didn't see it on RB4. Thought it was up under the dash. Corrected. Damn you ;)

Edit: Busted by 3p...

^ Nice job. Another example of SM at its finest.

You bet. Toyota calls it residual pressure but I tend to use Bosch terms. After all they pretty much invented EFI. Keeping the fuel under pressure prevents boiling and vapor formation. Same principal as the cooling system.

So many obvious pointers to the problem in the thread yet they were ignored. I don't get it.

The gage sensor belongs on the engine side of the thermostat. It's the one-wire device located directly below the TCCS coolant sensor (all ECU sensors are two or more wires). The reason these sensors are on the engine side is so they can better monitor engine temp regardless of thermostat...

You be welcome. See here for a more detailed explanation: http://www.supramania.com/forums/showthread.php?46793-Code-51&highlight=code+51

Yep, that's how it's supposed to work if the TPS is caled properly. It's caused by the idle switch in the TPS opening. You don't need the engine running btw. Also, if your AC is on (also don't need the engine running) you'll get the same code (51).

Actually iirc it is for the gage. That's why (along with the ECU sensor) it's on the engine side of the thermostat. Been awhile though so I could be wrong.

Rest pressure...