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Forum: MKIV Supra

08-16-2010, 09:33 AM

Replies: 6

Electrical Problems - No EFI

Views: 13,413

Posted By Sapar

No Problems

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
...

Forum: MKIV Supra

08-14-2010, 05:59 AM

Replies: 6

Electrical Problems - No EFI

Views: 13,413

Posted By Sapar

Fixed it

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...

Forum: MKIV Supra

08-12-2010, 08:46 AM

Replies: 7

94 JMD Supra idle problem.

Views: 3,655

Posted By Sapar

Mine too

Mine used to idle funny as well, turns out I had a leaky valve.

Could do a compression test, or unplug the fuel pump and wait for it to stop and crank it. Should have an even turn over, a quicker...

Forum: MKIV Supra

08-12-2010, 08:44 AM

Replies: 6

looking to buy a supra mkiv

Views: 2,166

Posted By Sapar

Helping out

If you have some time to check the car over there are a few tricks that you can do.

Compression : easiest way to do this without taking out the spark plugs, is to undo the fuel pump plug in the...

Forum: MKIV Supra

08-12-2010, 08:22 AM

Replies: 6

Electrical Problems - No EFI

Views: 13,413

Posted By Sapar

Found problem area

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...

Forum: MKIV Supra

08-12-2010, 07:09 AM

Replies: 6

Electrical Problems - No EFI

Views: 13,413

Posted By Sapar

Power at Igniter

Just checked the power at the igniter as it gets its power from the Ignition switch. I have 12v at the noise filter and the Black and Orange wires on both A and B igniter.

So I am getting power...

Forum: MKIV Supra

08-12-2010, 04:13 AM

Replies: 6

Electrical Problems - No EFI

Views: 13,413

Posted By Sapar

Testing stage 2

Ok I have found that I do not have the 12v power from Ignition switch to ECU. I do have power from other pins.

I have checked the power from the 7.5A IGN fuse in the drivers foot well and I am...

Forum: MKIV Supra

08-10-2010, 06:16 AM

Replies: 6

Electrical Problems - No EFI

Views: 13,413

Posted By Sapar

Electrical Problems - No EFI

Hi all.
Been here alot to generally find help on all my problems but I cannot seem to find the answers anywhere so I am posting. Hopefully someone can help.

First of all my car is a JZA80 Supra...

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