EDIS Issues

[nienberg.11]

Guys,

I recently got my Z running on EDIS, but there are a few kinks that need to be worked out.

 

First, there is a discrepancy between what the Megasquirt/EDIS online instructions say about how the plug wires should be arranged on the coil pack and how HybridZers like Z-ya have found it to actually work. Since my car runs I assume that I have the firing order correct but I was unable to find which cylinders are 'opposing' on the L28. To settle this issue once and for all, could someone please fill out the following picture with the cylinder numbers that correspond to each set of coils...

 

Secondly, when using an inductive timing light to check my timing, I did an experiment and used the light on each of the six plug wires. Obviously the light would only read my timing from cylinder 1, but what concerns me is that on three of the cylinders, the light flashes only about 1/4 as frequently as on the other 3, making me think that I'm not getting nearly as many sparks on those cyls. Anyone have any wisdom here?

 

Finally, the car runs well at idle but poorly on the road. It's very weak and stutters constantly. The MS shows occasional spikes in RPM and voltage. In reality there are a lot of sketchy aspects of my setup that may have gone wrong here, ranging from injector current limit spikes reacting badly with my new tach input circuit, to the fact that I have both my PIP and SAW within the same shielding. There's also the matter of my plug wires nearly touching my new EDIS harness because of where the coil pack is mounted.

 

Any help here is appreciated.

[datman]

1 and 6

2 and 5

3 and 4

 

Make sure you have MS setting set to rising edge not falling as the manual says.....its wrong.

 

If you like I can take a photo of the plug where the power wires connect.....I had to figure it out as I didn't have the plug so I soldered wires to the pins.

[nienberg.11]

Thanks Datman! The car isn't available for me to look at right now since I'm at school, but I'm pretty certain that I had all of the opposing cylinders wrong. The rising/falling edge setting is most likely part of my woes as well, since I followed the instructions I found to the letter.

Thanks for the offer on the plug pinouts, but I'm pretty sure I have that part right.