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Thank you kind sir

Do you have a link to that video just in case, the one you posted befroe does not work

Found a matching #’s ecu. Should be here in time. Hopefully it works

I also work for an airline and fly for free so if someone just happens to have one for sale I can always fly in and grab it

If i could find a matching # or compatibale and be able to get it shipped in time i would be all over it

Guess i may have to go with the ecu that has the 4k rom limit. Sucks but atleast it runs

No not matching numbers, i couldnt find one that matched anywhere. But its close. Almost has to be the exu since the code does not follow to 14 if you change the igniter plugs. I am just in a rush because i have a big event coming up next week and was desperate to see if it would work.

correct old one idles and runs great till 4000 rpm but wil not go into diag mode or over 4k rebuilt one will start for about 2-3 sec and shut off code 15 i cant win with this stupid motor i swear, ready to burn it lol

swapped igniter plugs to see if it followed to code 14 with no results. checked and have power to both connections 1 and 3 on the igniter plugs

okay so an update after much consideration and testing i ordered a rebuilt ecu. plugged it in and this one actually goes into diag mode!!!! but will not run. throwing code 15 Ignition Signal #2 checked for spark and it is good. tried a different coil and a different set of igniters with no luck?

Yes i need that video completed lol if i knew the correct way of wiring it i would deff do it. just dont know if the diagrams i am following are up to par

tried throwing multiple faults with no luck. the light briefly turns out while cranking i did hook up the sta also

will try thanks, it almost has to be a wiring problem. I'm just not confident in the wiring at all

so i got the check engine light to work, turns on with key power, start engine and it stays on steady. earth/ground TE1 and the light stays the same

another thing i was thinking about, oil pressure. Does the computer need to know that it is making pressure to stay out of limp mode? what about the oil level sensor in the pan?

If i’m reeading this right your talking about jumping the resistor to keep full voltage? Thats where i think i am running into problems. I do not have any of so called factory wiring or relays. Unless they are internal to computer. I literally have the ecu and what little sensors i have left...

still not quite sure how an output of the ecu can cut rpm or go into limp mode when it has no way of knowing if said output “fuel pump” has no feedback to the ecu

Not quite sure what you are asking. I run a fuel cell with an inline high pressure pump, it needs 12v constant, not the 1/2 voltage that i have read the lexus computer gives the pump under no load or cruising speed.

Thanks, any idea on which relay gives fuel pump full voltage as I do not want to run my pump under that.

Okay so sta gets power while cranking and then turns off while running correct? so basically i can hook it up to my control side of relay for starter. And then figure out which ecu pins to run the fuel pump off of