Electrical Problems - No EFI

[Sapar]

I had found junction II1 (big orange plug that goes near the ECU), I could not use the search function in the PDF manual to found it and I sort of stumbled onto it.

Located it in my car, unplugged it and turn my car to on (I switched the immobilize). Ran a multimeter onto the input wire from the 7.5A and I had 0 volts. So somewhere along the way I had lost the signal from one side of the car to the other.

I only had one other power as well, but I am assuming they get their power from relays ect that I cannot power up cause I am missing the IGSW signal.

I am not sure how I am not getting power at the moment, as there is no more fuses/splices from one point to the other. Maybe I am back to the immobilizer being at fault, as I did short it out way back at the begging of this problem.

Once again would appreciate anyone's help on general splice locations for the IGSW single for immobilizers (somewhere after the Fuse but before the orange junction plug) as it was a really good job on the immobilizer install. the box itself hidden well, and the wires are soldered and capped, and covered well back to mask the presence of the wires.

Hoping someone can help me out!

I am tempted just to splice the BATT and IGSW together at the moment... Or run a wire from the fuse and splice that directly into the ECU plug

[Sapar]

I fixed it!

I just ran a wire from a gutted fuse in the IGN fuse to a fuse holder and then directly to the IGN wire to the ECU.

It must have been damaged somehow.

Now I have a funny ticking noise, and it bogs down every now again.

I think the bogging down is from fouled plugs. I did have the engine upside down for 2 weeks, so oil could have got to them.

I will work out the ticking noise, could be the little guide washer that goes to the gear box, or it could be an imbalance on the crank, since I changed the conrod bolts.

Anyways That's the end of my not starting problems. No one posted but then again I sorted it myself anyways. Maybe next time?

Have a good one!

[pwpanas]

Wow - glad you got it fixed!

Many thanks for posting your troubleshooting steps and your solution.

Please pardon my delayed viewing of your posts - I had been away on business travel.

[Sapar]

Thank you for you comments. Maybe someone else will have the same thing and it can help them out.

On a side note all the manuals I used for the rebuild and diagnosing can be found here

http://pdftown.com/PDF-Toyota-Supra-...ce-Manual.html

click download and it has ALL the manuals for the Supra MKIV, I know it says 1997 but they are all pretty similar. Its also the American Left hand drive. But it has units in both metric and imperial.

Good manuals deffinatly worth having. Might have been mentioned before but if someone does read this and they start wondering how I knew what went where, I got it all from here