Hondata

Hi, i have a stock jdm H22 with turbo running RC 550cc injectors. im using a AEM UEGO, at idle and 2-3% throttle Its running lean past the scale,(below 18 something) even at cold start and when its warm. how can i adjust it back to normal condition i believe 14.7, if not what ratio? ive tried adding fuel at idle on the map but doesnt seem to work? just stays lean. i have it heard it is okay at idle to be lean alittle but i think mine is too lean at idle because i think i found out its one of my problems for my ECT getting too hot!! any help will be appreciated thanks

i tried added 30% on my overall fuel trim and at idle it stays at around 14.7 but it runs too rich on rest of the rpms.

At part throttle, you are running in closed loop unless you disabled the 02 sensor (which means running in open loop)

If you tune in closed loop mode, you will notice that no matter what you do, the ECU will try to keep it stoich. So if you are having issues with adding fuel, but changes are not apparent, then I think that it's possibly you are running in closed loop when tuning.

Make sure you have realtime update enabled, and make sure you have uplaoded the changes. Have you tried adding 30% fuel to the idle portion of the tables?