b16a95eg

iTrader: (12)

Hey everyone,

This past weekend I installed a set of FIC 1450's, and, as I read they're being a PITA

The car is an 03 Evo 8 and My Mods are: ETS 4" FMIC (stock piping), Kelford 272's, Walbro 255, Helix 3" Downpipe, test pipe, Greddy Ti-C Exhaust and i'm also using the stock airbox with a K&N drop in, all on 91 Octane until I get the scalings good, then i'll work on e85

Anyways, I tried using the scaling/latencies posted in the Lactencies Thread Merge.

They didnt work at all for me. LTFT's were in the -10's and Cruising was maxed at -12.5

So I tried scaling them to 1392, and tweaking with the latencies on my 4 hour drive home.

Well, after about an hour and a half. I finally got the LTFT's damn near perfect at -0.8, they stayed that way all the way until I had to slow down from my 80mph cruise to 60. Then, they just tanked, they went to -7.7something before I pulled over and tried adjusting it more. So I changed it back to 1329 scaling

I've recently gotten the LTFT Mid's down to -2.something at a 55-60mph cruise.

But I noticed that while cruising with either scaling/any latencies, I'm cruising at low 14's to high 13's for AFR's. What should I do to get them back to the normal low 15's high 14's?

I also noticed that the car does not like to cruise in town, say 4th gear 40mph light throttle, normal cruise, it sputters and doesnt sound very good. The AFR's go down to about 12.5-low 13's. So obviously something isnt right. Anybody know why its doing this?

Also I'm having some start up issues, I havent really worked on that though, just lowered the latencies some which has helped slightly.

I've done no MAF scaling

I'm currently using 1329 for my scaling and the latencies i've brough way down, they are:
2.592
1.992
1.392
1.008
.960
.864
.814

**cliff notes to questions**
1. How do I get my cruise AFR's back where they were? should I go higher with the scaling?
2. How do I get rid of the sputter, low AFR's at a lower speed cruise?
3. Am I going in the right direction for getting the start up better? (lowering the latencies in the 11v and below range?

I'm pretty new to this tuning stuff, I also havent had a chance to check the idle trim, since I just got home and my car is to loud to have it idling forever.

I can go take some logs tomorrow too if that will help!

Thanks in advance!

tscompusa2

iTrader: (22)

trims adjust every 4minutes, so good to log a good 22minutes or so on highway and adjust accordingly. as long as they are within -+%5 leave them alone, you dont gotta be that precise.

the trims adjust based on the closed loop LT trim control table which is determined by MAF hz / airflow.

log hz at idle if it exceeds the mid > low transition the car wont ever be able to adjust "low trim" .. you need to find the XML for your rom to pull up the table i mentioned in order to adjust the settings if need be.

keep car above 100HZ+ when cruising and MID trims will adjust just fine.. the rest is up to you to get them where they belong.

b16a95eg

iTrader: (12)

I got the cruise trims to -2%, i'm fine with that. I havent seen what the idle trims are with these trim settings, so i'll find out tonight after work.

Is that cruise sputter do to the pump gas and to big of injector?

Fast_Freddie

iTrader: (50)

No reason to go crazy when dialing ininjectors... My rule of thumb is as long as they are within +/- 7 they are good to go... set it and forget it or you will drive yourself crazy!

Biggiesacks

to adjust cold start you need to work with your Cranking Enrichment IPW adder. I dont think it even looks at the voltage scalings when starting up. I have 1450's as well and they can be a pain to get scaled in but my car runs excellent on 91 and E85 now that they are.

b16a95eg

iTrader: (12)

Which table are you referring to?

b16a95eg

iTrader: (12)

What are your scaling/latencies and mods?

b16a95eg

iTrader: (12)

Well, I got the trims close enough, but the AFR's are still a little low at idle, and at cruising.

It also still is sputtering, during cruise and the AFR's fluctuate from high 12's to low 15's at times. Anybody else have that problem?

I can email a log to someone with a very short cruise showing it.

b16a95eg

iTrader: (12)

Also, I keep getting p0300 CEL's and you can definitely notice it misfiring while cruising, its almost constantly sputtering. You can definitely tell during idle too. But my trims were ok?

Any idea what to change? This is on 91 octane right now.

Scaling:1329

Latencies:
3.264
2.232
1.680
1.272
1.080
0.888
0.696

tscompusa2

iTrader: (22)

closed loop lt trim control. table needs added to the xml code in order to see this in ecuflash though.

Biggiesacks

You may have fouled your plugs trying to dial the injectors in. You should check/replace them and see how that goes.

Creamo3

iTrader: (48)

Have a look at this thread if you haven't already, I'm using these settings for latency/scaling with good results: https://www.evolutionm.net/forums/ec...max-1450s.html

b16a95eg

iTrader: (12)

Those were the first scalings I tried, they didnt work for me, it just dawned upon me that I didnt check the plugs yet, so i'm heading out right now to try that.

b16a95eg

iTrader: (12)

new plugs didnt do anything, if anything, it made it worse

Biggiesacks

did you gap them? If so what to?