I agree with you paul. Go back and read your post....i think some of it got chopped off. I would like to see the point you started to make in the first couple sentences.


The circuit from the 2.2 board is the same on the v3.0 board. Now when my 2.2 was made, the neon circuit had the 1.5k ohm resistor added between the VCC and the 390 ohm resistor in the optoisolator circuit. I tried that......no noise at idle but some in random rpm ranges.

As you know now, the neon circuit has been changed to add 150 ohm resistor between the 390 ohm of the opto isolator circuit. This helped a little.

As for the harness, its all GXL wire and i have never seen the issue with a V2.2. The problem is with spark and FUEl. if you run fuel only then its not an issue.

the only thing i have not tried and it could be part of the problem is to run the internal ignitors. All the people running the v3.0 are runnign those. However the fairchild ignitors are obsolete and that only leads us to the bosch BIP ones.

Hong Kong has 5000 of the Fairchild ignitors but I would imagine they want to move 1000 or more to get them here.

Now I wonder if mose Neon guys are running the VR circuit, I am still pushing to use the Optoisolator.

Keep whatever ideas you have coming.....its appreciated.

Terry