AFR's not being controlled
OK, still dealing with the rich issue. Not being caused by the O2 sensor, exhaust is gas tight, none of the usual issues. My wires arent next to each other, and I've even shielded the important ones and have grounded the shielding on one end. Here's what I'm seeing, though: The AFR being asked for by the ECU is pretty close to the actual AFR at idle. But as I open the throttle, the demanded AFR is at the lowest 13.6. As soon as I get on the gas, the AFR plummets to 1o. The more throttle I give, the lower it goes until it starts backfiring or almost dies. Once I let off the throttle, it goes back up to the set AFR. The TPS is reading correctly. Any suggestions? The spark advance says it's moving as it should, just the fuel seems to dump way too much. I'm at my wit's end with this, that makes no sense.
Since no one has helped out, I'll update with a new question. After messing with everything for a while, I've been able to get the AFR's within about .8-1 between the requested and the actual. In looking at the logs, though, I have a question about the parameter named "fuel loop" I was expecting that to be whether or not the system was in open or closed loop, so expecting a 0 or 1. Instead I have a bunch of numbers ranging from 8 to -10. What is this cell measuring? In my version of the procal, it's column Y.
Anyone know what that's measuring?