Thanks for the detailed information.
Did you just take a single strand wire from the ECU and just braid it into the Zeitronix harness then??
Shouldn't be too far, since the ECU and the armrest box are only about two feet apart.
Well, as for me, the reason it worked so well was the reason I decided to take the plunge. Wish I had known more about it then, even though I did choose to include Zeitronix at the time. With normal street driving, most people don't stay in boost for very long and the Comptech box seems to work quite well.
In my case, probably all the high-rpm track sessions ruined my engine (after about 8K miles). After replacing the engine, I found that it would run lean above 6500 rpm, even with the Walbro. And also, the ignition timing wasn't retarded enough according to the tuner I contacted.
So that's when I got the 550CC injectors and the AEM F/IC controller.
But I am still looking for potential problem points.
At the moment, it seems that sometimes, the ECU doesn't respond quickly enough when I apply just a bit of throttle when cruising.
Sometimes, when I am doing 50 mph on the highway (for example) and apply a little throttle (not even going into boost most of the time), I see my AFR going up to 15-16.5 for a second before it comes down again.
That's why I am currently logging all the data and would like to have the TPS input as well.
One problem is (not really a problem actually) is that as soon as you lift the throttle, the fuel cut-off cuts in, and your AFR on the ZT goes up to 21.0 because the ECU is saving fuel.
