Hondata

Thanks!

Any updates on this? This would benefit me as well.

Hi RonTonShop,

I had the same exact problem as you where in open loop, everything runs fine, but once I turn on closed loop, it would lean out so much that I would have to add approximately 80% in overall fuel trim to get it back into the right range.

The solution for me (probably not what you ...

Yeah, I'd like to see what other Honda's are like around here. Weekends typically work better for me, once in a while, my wife and I will make a day trip to Ann Arbor to eat and walk around, so we can work something out for sure.

Hey wagon-r,

I didn't have exactly the same problem as you do, but I had the Code 9, CYP code before and everything checked out. I'm using a B16A2, w/ OBD2 distributor, and it ended up being that a small amount of water got into my ECU (through the USB port) and somehow only affected that part of ...

So it appears that leaving it over the weekend with the battery disconnected seems to have changed something. Everything is reading normal again in Smanager (i.e. 12V reading vs. multimeter measurement). I am still a little nervous about driving her anywhere though, any thoughts on the solid red ...

That is correct. I also have a cigarette lighter meter that tells me voltage as well, and that reads correctly. The same issue exists with the same S300 in my other P28 ECU.

So, I measured the voltage while the vehicle is on, across the battery posts, the battery positive to thermostat ground (and other random ground points). On the ECU side, while plugged into the ECU, using paper clips, A25 to A24, A25 to A23, B1 to A24, and B1 to A23. I'm not sure which ones the ECU ...

My serial number is 21453.

The version of Smanager that I am using is 2.2.7.0.

Hello,

For a while, the S300 was running very well, then one day, it started running a little rougher. Then I noticed that the 12V signal was a little low compared to what the battery measures out at (Smanager showing me 12.7V when the battery measures out at 14.1V with the vehicle on). So I ...