Activating a pump via an oil pressure switch.

[jff45]

The 2 different power sources are just the way it has been drawn. You can use the fused power source going to 30 which will power your pump and simply bridge it across to 85.

[mudski]

Thanks to you both. I want to get this done right now but its 33c in my garage so all I'll get done is drinking beer. Lol might have a go tonight when its a bit cooler and thats one for thing ticked off my list.

[Rumcajs]

What programme are you using to draw those diagrams? I really like the "factory" look

Its really simple, you can use MS® Windows Paint to run lines and use your favorite PDF reader to copy symbols, connections whatever from actual Nissan diagram then pasting them to "Paint".

I use GNU/Linux version called KolourPaint cause it is really simple to use. I tried in Photoshop, Gimp and CAD software but thats just too complicated. "KISS" principle is the best.

I'm considering rewiring my fuel pump circuit (currently hooked to overide switch only) to include inertia switch (to cut off fuel pump feed in case of accident) and your 5s timer given me an idea to include little timer relay as well.

Another thought, if you are using TB45 ECU shouldn't that one be able to keep your pump running as well when engine is running? I'm guessing the ECU sees no engine running......

If one was to get hands on TB42S electric fuel pump module then everything will be taken care of....

Regards

[jff45]

The TB45E ECU waits for a 120 degree signal from the distributor to tell it the engine is running so that's not going to happen now. The only signal coming from the TD42T is the tacho and the ECU can't use that.
It's the same for the A/C so those wires had to be bridged.

I was using a free programme called TinyCAD where I could copy images and store them into a user library.
I'll try it with a collection of pics from the PDFs.