I'm reaching out again for help because 4+ months later and I'm still trying to get this working -
I'm fairly certain that I have a grounding issue. I've been trying to different ground locations and combinations and I'm getting closer, but I still get interference for any RPMs outside of idle. The instructions tell me to ground the system to the ECU and the lamba sensor to chassis or block. I'm getting the best result so far grounding lambda directly to the block.
Here's a quick log, you can see the RPMs zero out towards the end when I touched the throttle a couple times. Any ideas????
