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Yes but that's simply a result of the ECU noting the engine was started with STA missing. STA is what directly powers the cold start injector: http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=38 It also tells the ECU to do several things when cranking, things that assist...

Fwiw the loss of STA could have everything to do with his hard cold starts.

But he'd get more pressure due to better filtration :icon_razz

That last part. The injector coil is after all nothing but a long wire.

^ Damn well said. I would have said it myself but this place can make one feel like Sisyphus...

Your time is coming sooner than I thought...

No. ECU is highly unlikely. No. Doesn't work that way. Could be stuck open though as could one of the other injectors. Checking for rest pressure decay is one way to test for that.

Test the modulator, check the modulator's filter, and check for exhaust pressure to the modulator/exhaust leaks. Seafoam was a bad idea...

You could but the stock gage sender as well as the EFI sender is on the engine side of the thermostat for a reason.

Interesting thread that contains some good observations. Congrats to the OP for making the effort. That said my comment applies only to older vehicles.

Annoying ain't it? I can smell 'em a mile away. It's why I stay out...

Not to check them but keep in mind some codes require several parameters be reached before they're set and coolant temp is one of them.

Fwiw the CSI doesn't need the ECU to function.

Have fun. I'm actually kind of impressed. You have good tools and the beginnings of a decent handle on this stuff. It was really not necessary for me to get involved.

Great. Then move power from A 10 to C 8. You don't care if it matches the schematic, all you care about is it works. Chalk it up to the price paid for swapping clusters. If you still can't get it to work take it outside and do a mag dump on it with that new Glock...

He means the thing right behind the air filter. I'm guessing he wants to see if it's been tampered with. My advice is to take the car to a mechanic because, like, damn...

Well, you already know C-8 is correct so you're doing something wrong. Nothing I have shows A-10 being used. Verify on the cluster which is the switched 12 volt. Either eyeball it or ring it out using the meter. Since it feeds most of the gages it'll be obvious. Iirc it's even marked on the...

Yeah, that area is a pain to get at. Just be sure you're always measuring the correct thing and you'll find it. Using the TEWD is simply a matter of learning the symbology combined with practice. Good luck...

It's all right there in the book. 1F is the connector on JB1 in the left kick panel: http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=16 E3: http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=28 It's blue...

Then look at connectors 1F, E3, and JB3 (connector 3B). It goes through there: http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=20 http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=15 If you don't want to measure voltage just pull the fuse and ohm...