3800 ICCU installed...somewhat tuned...little help

[Royalgtp]

SO my car is running rich as hell. At WOT ive hit 950-1000 on 02s...

A little backround info...

My LTFT are messed up because of a ported TB.....

So Ive set my ICCU to 103% at idle and my LTFT are very close to 0 now....give or take a percentage up or down.....

Im just wondering, shouldnt i be taking away fuel instead of adding it?

At cruise the LTFT are at 5-8.....so tune the LTFT to 0 again? Right?

Then do a bunch of WOT runs looking at my 02 values and adjust the ICCU so that my 02 values start to fall around the 910 range Correct?

910 is good for IC cars correct?

Any help would be great.

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[superchargedgp]

get rid of the TB and start tuning the car then. you'll get better results.

i havw 890 o2's with Ic and no knock

 

[imported_Ron Vogel]

No matter what you are limited to what you can tune with the MAF. Tune for -2 to -4 ltft, that'll give you some breathing room to be safe. I don't know personally any of the ICCU's settings, but you should tune to normal driving, and wot will follow. The WOT fueling is preset at a certain A/F. You need to tune to normal; not even spirited driving. You want to stay out of PE mode. The computer will learn out the changes over a period of time, and lean it out some. You will always get richer readings when you first make changes. I would shoot for a target around .910 to .930 with the IC. Running lean just because you can burns holes in pistons and fries the head gasket beteen the center cylinders. Running too ruch kills the ring lands and will also blow out a head gasket. Try and stick with the .910-.930 rule (as long as you trust your 02 sensor), and you'll be safe. Even in the cooler weather, I stay out of the throttle if the car is one way or the other.
I just got a DHP PT a month or so ago, and there is a steep learning curve that goes with it. A lot of good information on the DHP forums about tuning.

 

[gtphale]

Actually it goes by mghz or something like that. The top one is idle the middle is cruising and the last one is WOT. So if your bumping up the first one then your just riching up your idle. I tuned to O2's not lft's

 

[gtphale]

Oh and I was told by Big Jeff that Intense keeps their cars right around .940 keeps from blowing your head gaskets when making lots of power and especially if running the mls gaskets.