Thanks for the info suzuka.

I finally got the new rear so I can do some more tuning but I am having issues. I was in a large parking lot working on my tune I noticed I had some really bad lean and rich spots just driving around normally. I played with it for like 30 minutes and got a nice tune. I shut the car off turned it back on and my tune was crazy lean. Is this the ecu learning or what and is it going to do this every time I turn the car on and off? I heard of people doing some kind of relay trick to the ecu so it wont learn but I dont know what the trick is and if I do it and I am on a 2 hour drive is the ecu gonna learn and then screw up my tune until i shut the car off and on again

 

i think that's the toughest thing about tuning with this system. You have to make as small of an adjustment with everything as possible. The F/IC has to work with the ECU and not fight it.

Hopefully in a very short period of time I will be able to give you more insight on it. I am shooting to get to the dyno this tuesday.

 

you should post up a shot of your fuel map, too. :wave:

 

Sounds familiar, however in my case it would go crazy rich and with some lean spots/hiccups right off of idle and then again at about 25% most noticeable around 4-5k but was throttle position related not rpm, this may be the same for you however hard to pick it apart sometimes. Its not suppose to conflict with the closed loop operation of the ecu but I was getting conflict too, we used a scan tool to see what it was doing and at times would just be a mess. The settings we made on the fic per the proper procedure would contradict on the scan tool and would just do random things that made no sense. I was using 550's so I think that magnified these issues even more vs using 440's. Watch your oil condition!

 

Well me and my fiance spent an hour and a half tuning my car yesterday. I must have done 120 pulls. She is sitting in the passenger seat with the laptop making adjustments as I tell her its so much easier than doing it myself. I shut the car off and on a few times and my tune seems to be getting much smoother and leaner which is great because I was pig rich before. Car is accelerating smoother and making pretty good power. It still needs more work but I am getting there. Maybe I will drive it some today to see if my tune is still good.

 

So I took it out today and that nice driveable car I had is gone. WOT is still spot on I run right around 12.0 to redline. Driving around town suckssssssssss. As others have stated one day you tune and its perfect the next its all screwed up I have horrible lean spots at partial throttle that cause the car to bog and buck. Those lean spots were not there yesterday. Do I just keep tuning those out and the computer will eventually give up or what?

 

this is interesting. Would you snap a screen shot of your fuel map and post it?

 

At least it seems to be consistant, just not in a good way

 

I was curious as to if the FIC could be tuned out for say anything under VTEC because they stock ECU handles that fine. The only prob I still have with mine is that pig ass rich hops occasionally with partial throttle between 4-5k rpm. Under boost my AFRs run about a 10.8-11.2. Other than that its fine, but its going to be some time before I get injectors and pull the ESM and FPR.

 

random question...

what are all of your a/f ratios at an idle when warmed up?

My gauge reads around 14.7:1