rtek st2 n374 ecu (Shouldn't change anything but just a note)...

I took the plug wires off and took out my dizzy and turned it by hand to see which plugs were firing at what time and this is what I found...

Each line is to show what fires at the same time!

T1, L1 & L2
T2, L1 & L2
T1, L1 & L2
T2, L1 & L2
T1, L1 & L2
T2, L1 & L2

Rince & Repeat...

The trailing plugs alternate and each time one of them fires, BOTH leading plugs fire.

So each time I get spark, there are 3 plugs that fire at the same time!

Shouldn't only 2 plugs fire at any one time?

I took both leading plug wires off and it still won't start...
Then I took the trailing wires and hooked them up to the leading plugs... Still wouldn't start...

 

http://www.wright-here.net/files/man...Electrical.pdf

 

Ah, so the leading plugs are supposed to both fire simultaniously with each trailing plug.

Thanks confab.

 

yes that is the correct firing order for all non-Renesis 13B engines with electronic spark advance