Hondata

I wired mine with both the sensor signal and sensor ground to the analogue inputs/ground on the ECU.. it seems best.

Previously I had it another way and the reference of voltage was off significantly compared to the AFR.

the Ign and MAP definitely don't correlate to the AFR, I can only suggest interference or failure of the sensor.

You're in closed loop in that part - I can see the S trim chasing the peculiar AFRs, I'd go open loop and see how it behaves then.

If you have another car with a 4.9 LSU unit, swap them ...

I've been trying to do a datalog or upload over bluetooth, it really doesn't seem to like it.

I can see the kpro, it connects... but not much else happens. I just want to know if anyone has experience in this and what I should expect of the behaviour.

Thanks!

Alex

You basically have to void the warranty to go external Wideband anyway :-)

C'mon Hondata, that's hardly fair.

Thank you, that's good to know ^^

As for the fuel tip in - have I been aggressive enough ? I don't get bog. I'm not sure how much transient leans matter.

Hi Folks,

I've got a small lean spike in WOT when I hit the VTEC point.

It's small but it's annoying me in an OCD sense. I'm not seeing a loss of performance but no matter what I've tried, I can't seem to tune it out.

The map is giving sensible WOT AFRs between 13.1 and 12.7 (I've aimed for about ...