Setting up 2NZFE coils on 20V with Razorback ECU?

[sillycar chick]

Need help! I set my coils up as per this and im only getting coils 1 and 4 firing on my engine Ive set my ECU to run "2" coils instead of "1". Ive checked the coils and plugs im using on 2 and 3 and they work on 1 and 4 when swapped so its gotta be the signal. The connectors for 2 and 3 are also connected to the ecu pin stated, we checked for continuity.

Any ideas? I need to fix this today or I cant drive to Toyfest tomorrow

[sillycar chick]

Some info I found here (http://forums.club4ag.com/zerothread?id=55377) that may be of use to help me solve this:

20v Silvertop/Blacktop:
4 wires (colors listed not in order, green, white, red, black)
looking at the distributor connector left side first
1 = G- (ground)
2 = G1 (1 tooth home synchronization wheel)
3 = G2 (180 degree offset of, 1 tooth home synchronization wheel)
4 = Ne (24 tooth engine injection synchronization wheel)

When you reference that back to the razorback pinouts, you see that G2 isnt connected to my ECU anywhere, could this mean that 2 and 3 arent firing because the dizzy isnt telling the ECU when its 180 deg off 1 tooth home, and 1 and 4 ARE firing because it knows when 1 tooth home is?

[NME308]

Some info I found here (http://forums.club4ag.com/zerothread?id=55377) that may be of use to help me solve this:

20v Silvertop/Blacktop:
4 wires (colors listed not in order, green, white, red, black)
looking at the distributor connector left side first
1 = G- (ground)
2 = G1 (1 tooth home synchronization wheel)
3 = G2 (180 degree offset of, 1 tooth home synchronization wheel)
4 = Ne (24 tooth engine injection synchronization wheel)

When you reference that back to the razorback pinouts, you see that G2 isnt connected to my ECU anywhere, could this mean that 2 and 3 arent firing because the dizzy isnt telling the ECU when its 180 deg off 1 tooth home, and 1 and 4 ARE firing because it knows when 1 tooth home is?

This may be a stupid question... but do you have 2 ignitors which are separate from the ecu?
I imagine the stock setup used a single ignitor to fire a single coil? I.E. distributor sensor signals go back to stock ecu and ecu signals an ignitor to ground the coil and fire a spark... In your case I once again am imagining you will have the distributor sensor signals going to the razorback which will now fire coils 1 and 4 on IGT1 via the first ignitor which has coils 1 and 4 earth's connected to it. Coils 2 and 3 will fire on IGT2 via the 2nd ignitor which has coils 2 and 3 earth's connected to it.

It appears to me from the top diagram that the modified razorback ecu may not need the G2 signal you refer to. It possibly only requires the 1 tooth reference signal because once the distributor has turned once and the ecu has found the home signal it will fire one IGT output at the first trigger signal and the 2nd IGT on the 2nd trigger signal and then of course the reference tooth will be sited and the process starts again...

I've wired in a Motec M4 to the HQ 18 months ago and it seems ecu's have endless pitfalls for the uninitiated - even more when working tired!

Hope you have someone knowledgeable to look over your shoulder by now!

Cheers,
Jason

[sillycar chick]

Yeah I eventually got hold of the guy who made the ECU and G2 isnt required. He's going to come out some time over the weekend to figure out whats wrong as he said it should be working....
Pity I cant make Toyfest tho