Hondata

I think it's a difference between UK and US ecu's. I already know that the UK ep3 needs to run with the secondary 02 enabled (even though we don't have one) to stop it throwing a code.
My car runs great in open loop and also with the primary 02 in closed loop (with engine management light on for the ...

I have a problem with my map changing over night.
It was originally mapped and ran great all that first day, Then next morning the is hesitance in every gear. When i initially accelerate the car bogs down and when i looked at the data logs it looks like the timing is going all over the place.
The ...

As part of the swap i also have to use a muliplexer to convert from toyota to honda, so at the moment i'm just trying to fault find.

If i earth pin B9 should the revs go up ? I'm starting to think the multiplexer might not be switching to earth.

Yes, It was working perfect before the swap a week ago.

37820-PRA-E12

I'm currently doing a k20a2 swap in to my mr2 spyder, The instructions i have say that i use the vtech pressure switch (Honda ECU (B9)) reused to be the ac switch.
I've been through the provided K-pro setup 4-5 times, everything looks right and the ac still doesn't work/

If all of the settings are ...

some useful info can be found here

http://www.hondata.com/tuning_k24a2_tsx_engine.html