I can crank the car but it does not fire also the check engine light comes on but is dim. So what part of my wiring should I be looking at? any helps would be great thanks.
need some help withmy 1j wiring
- Thread starter wornoutsupra
- Start date
I have a hot switch for the starter and I have a soarer ecu and all that pizzaze, reason for the hot switch is because it will mainly be a track car.
well I still have to turn the key to the on position then press the button for it to crank over and right now i dont think I am getting a signal to the fuel pump. what color wire is for the fuel pump relay and which wire should it be hooked in to?
Shown here
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=46
Youll notice that the 7m computer uses a green wire to signal the fuel pump relay (aka circuit opening relay), you need to ground this wire, to run the pump.
Do you have Spark?
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=46
Youll notice that the 7m computer uses a green wire to signal the fuel pump relay (aka circuit opening relay), you need to ground this wire, to run the pump.
Do you have Spark?
Last edited:
I am pretty sure everything else is working not totally sure yet though. but thanks i will check that out.
So this green wire is at the kick panel? not to confuse things but im helping him. One of the other isses we're having is getting power through the harness. Last test for power in the harness we got .08V??
See how the green wire goes through the B1 plug here?
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=47
What does the B1 plug look like?
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=29
Its in the ecu area.
Where?
Most abbreviations Toyota uses are similar between models. So looking at the 7m stuff can be helpful. (like where the computer needs power and ground)
See how the 7m comp gets power here.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=49
how it gets ground.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=47
Spend some time on that site.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=47
What does the B1 plug look like?
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=29
Its in the ecu area.
chuckmuska2005;1592265 said:
Where?
Most abbreviations Toyota uses are similar between models. So looking at the 7m stuff can be helpful. (like where the computer needs power and ground)
See how the 7m comp gets power here.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=49
how it gets ground.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=47
Spend some time on that site.
Last edited:
Got it squared away. I checked the harness for voltage at the diagnosis box at B+ and E1. Grounded Green wire as in diagram and fired up.