Hondata

A27 on the original ecu connector, A12 on the obd1 connector.

What car do you have? If you have a 96-98 this is the wiring. Do you have a wire in A26? Some cars don't have it.

Try removing all but the switched 12v wire that powers the regulator. Just needs power to work, other 3 wires aren't needed.

The analog ground needs to be hooked up to D22.

Most widebands are 0v=10 A/F 5v=20 A/F. Use the settings in the pics for the X series.

When using any wideband it should be wired to D10. Using D10 requires the romoval of r136 and r138 on the board. Using D14 limits the upper and lower voltage so you won't see full range. Removing those resistors on D10 will give you full range. The only issue I have seen on the Xseries is the amount ...

If you set it up like the pictures it will work like stock. If you ever want to actually use a stock sensor you can.

Using D14 with any wideband limits how low or high of a reading you get. You also get the same thing on the ELD input if you don't remove the resistors. Using the ELD for wideband also lets you run an OEM sensor like stock with just switching back in the software. Fuel economy will not change based ...

The A/C not working is probably due to the ecu not having the components needed or something is bad. As far as wiring the x300 for closed loop operation goes this is what you need to do.
Make sure power is on a relay so it doesn't shut off under cranking
Wire analog signal to D10 ELD
Remove R136 and ...

CONTRIBUTE WITH YOU? IN WHAT?

PAY MY DEBTS?

STOP BEING A SAD MAN ASKING HOW THINGS ARE DONE.... IF YOUR MIND IS NOT CAPABLE OF DOING SOMETHING SO SIMPLE IN A "STANDALONE" YOU HAVE NO FUTURE IN THIS INDUSTRY.
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I couldn't care less about your 2 step B.S. You keep posting the same nonsense ...

Whats the setup? Ignition timing actually goes down at the spike, wouldn't think it would be detonation. The motor is cold so there is timing be added on top of the main table.

My last post was to who started the thread.

Why post here if your not going to contribute?

What car is this? EG, DC2? Can you post a pic of the intercooler?

Whats the IGN timing doing?