camuman

hmm, lets see what we can do to help you.

what i ussually do before ussing the trims, is to adjust the iac valve setting. try to get it to adjust only +-1%. i fuel enrich until 160 temps. it is possible to cruise and see below 180, so you would be enriching while cruising. but o2 fb, if on, would trim it out. better off not having all that going on.

o2 fb can be adjusted by you as when its on and off. mine doesnt turn on until 140 water temps. then its on all the time. part throttle and WOT. most likely yours is too.

as for map sensor. if your map is like the base map, then you are always using the map and rpms to determine fuel/ign to use. there are other ways to tune the car. i have never used them and would have to read on them to see how to use them, but i have def heard of boost comp based map.

i dont use that....but you would have to look at your map to see if u do use it. if you dont, its fairly straight forward. specific load specific rpm = fuel/timing value to use. air temp, water temp, knock, can trim this value.

anywho, for idle, i idle at 14.5-15.0 pretty solid. i cruise around there too. if your idling at 13.5, thats on the rich side and not needed. make sure o2 fb, if on, is not trimming the fuel and maxing the fuel trim it is set to add/remove. i try and get the o2 fb to add/subratract very little amount at idle/cruise/WOT. you dont want to rely on it 100%. not even 50%. you gotta tune

take some more cracks at it. i have mine so it hardly uses ign/fuel trims to control idle. it relies mostly on the iac valve. but i have it idle pretty damn solid

on enrichment i hit 12.9ish and at 140 water temp o2fb kicks in and trims fuel to 14.7ish. good luck dude, just make small changes, and see what the change does



i forgot to mention, if your looking at raw values on fuel, you cant compare one map to another. cuase you can rescale the map so that the 0-255 means something different. 1 value change can be more pronounced changes on different maps depending on the scaling.

july7543

Well, after a little bit of tuning I was able to get it to idle around 14.5 as well as cruise around 14.5. Currently, I've leaned the VTEC fueling from 10:1 t around 12.5 to one and the non-vtec WOT condition is around 13.5:1. I've been slowly trying to get the partial throtte tuned. I'm using data logging and it seems to work very well.

One think I'm unsure about is the O2 sensor calibration. The O2 sensor in the EMS is showing less than half the value of the wideband and seems to operate with a target afr of 7.0. I'm wondering if this can be adjusted to correlate with wide band.

Also, how does one go about evaluating the timing maps. Are there known safe values available for reference? How safe is it to advance timing degree by degree using the knock sensor as a guide with a copilot on the street?

Finally, I've scoured AEM's website for 10psi basemaps. I've been unable to locate anything. :/

s2000Junky

Your non vtec WOT is too lean at 13.5afr. I would aim for 12.8 there. 13/13.5 afr is your target area for partial throttle right before you start making boost, but play with this a bit on the street and see what feels the best, my car/w mods felt stronger and more responsive, richer at about 12.5afr there. This area of the tune will show in the -8/-5 vacuum.

12.5afr is good at vtec but would taper it down slightly as you increase rpm so that your running about 12. -12.2 at redline. If your street tuning its better to air a little bit on the safe side, unless you have a way to detect detonation. Doesn't hurt to check the old fashion way and look at your plugs after a few WOT runs.

camuman

in aem software, change the unit of measure for AFR off gasoline and apply then back to gasoline and apply. most likely thats why its showing 7.0.

CourageOO7

Yes, that's because it is using a MAP sensor to measure load. MAP = Manifold Absolute Pressure sensor.