nj1266

iTrader: (6)

Does anyone have scaling/latency for delphi 850 injectors?

gsrboi80

iTrader: (38)

Getting better LTFT +/- 1.56 after a 30min cruise. Most seen was 4.xx around town/stop and go

Precision 880's
Scaled to 812

3.312
1.68
1.344
0.96
0.744
0.456
0.24

Couple issues I'm seeing is that if I abrubt stop/or clutch the RPM's down car wants to choke. AFR's go super rich.

Eventually the car will hold a fine idle but AFR's will go full lean sounding like I have huge cams, then to 12's, then super lean, then bounce around WIERD

However if I let the revs come down gradually it'll fall to a good idle. Still doing the WIERD ARF bounce thing though but the idle stays put

bigric09

iTrader: (37)

sounds like a MAF scaling issue

gsrboi80

iTrader: (38)

Hmmmmm time to read through the how to on that

Injectors look good though right

MrEvo2nv

iTrader: (15)

Thats weird i kinda got the same problem. My injectors scaling and latencys are mint, but if i go from high rpms and clutch it or make quick stop the car almost stalls and chocks up. and once awhile when i'm at idle my wide band will go 16.00 lean and sound like i got monster cams and idle around like 700-800 rpms. then jump to like 1100 - 1200 and go rich then idle back down to normal 14.40 to 14.80 afr's. and its never ever done this before after i got tuned. i am guessing bad iac motor or boost leak.

gsrboi80

iTrader: (38)

Well I have no boost leaks, this issue only started happening since I installed my turbo kit and started tuning. Maybe it is a MAF scaling issue more damn reading but it beats paying tons for a tune to someone who will not likely adjust those settings anyway

major

scaling and latency with Sard 800cc injector ? please

fid

iTrader: (18)

Problem:

Evo IX, PTE 780's, HKS Intake, Walbro, etc. The problem is in lean idle. I bought the injectors used btw. I have single handely tried every latency adjustment known to man to eliminate my lean idle. The car cruises just fine toggling between14.7 and 15.0. My idle I cannot get below 16.2 and coming to a rolling stop it will jump to 17.2 and then casually back down to the low 16 range. I have tried adjusting my latiencies to very high pulse widths to try to force it down and it will idle rich, say 13.9, and then 25 seconds later it will be right back to the low 16 range. I have scaled this across the 11v to 18v range, tried rescaling my voltage ranges, tried rescaling my MAF sensors, tried different scalings/latencies for different sized PTE injectors incase I was sold the wrong size injectors to no luck.

Anybody have any ideas from here? The only things I can think of are maybe a real dirty MAF, weak fuel pressure at idle. My battery is strong and have logged in the 14.1V range at idle. Any ideas are welcome!

oldevodude

iTrader: (3)

What is your global scaling set at? Have you ever considered that maybe the injectors are bad? If you want more fuel lower the global although it sounds like it might be bad injectors or something else bizarre going on. good Luck

fid

iTrader: (18)

Thanks for the reply. My scaling is set at 680 but since my cruise numbers are OK I don't see the problem there plus I have already messed around with the scaling from 592 on up . I could see a sticky injector and was one of my original thoughts but since the cruise A/F doesn't hunt like it should if it was a sticky injector I am leaning away from that. But thanks for the ideas, they are appreciated .

oldevodude

iTrader: (3)

If you added latency at 14.4volts and af did not change wouldn't that make you believe your injectors are not putting out enough fuel? what about exhaust leak in front of o2 sensor? this can also cause lean readings. All i know is if my scaling is too big my car will want to die coming to a stop or after revving past 2k. You can get trims close with a lot of different scaling numbers by adjusting the latency hope this makes sense. did you have injectors before changing turbo or did you do them al lat once? Nothing personal but this is why I personally would not buy used injectors because of the unknown. here is hoping you get it sorted

major

Does anyone have scaling/latency for sard 800 injectors?

fid

iTrader: (18)

I can force it to go rich at idle but within 20-30 seconds it goes right back to where it was at low 16's. That is what confuses me. I will have to double check the O2 sensor to make sure it is not leaking. I never changed the turbo so I think you might have misunderstood. I definately agree buying used injectors is always a gamble I mght have to buy a new set to eliminate the chance of it being the injector. Thanks again for the ideas/comments .

gsrboi80

iTrader: (38)

My car to a tee. I just cant get it figured out no matter what I do. I think its coming time to rid myself of the stock ECU

dan l

iTrader: (3)

FIC 1150

I've been running these for a couple weeks now. I think these are bored out versions of the popular 1050's from FIC. If they aren't, they sure act like it because I am running mrfred's latency values. On regular gas my trims are within + and - 5% whether it be a 75 degree day or 20 degree night. Cold and warm startups on the stock base IPW charts is very good. For good warm starting on gas you will need to do something similar to what I have down below. Note you will have to add in 30% or maybe more when running E85 as the car will start and then stall due to not enough fuel. These injectors flow 1190cc/min according to the sheet I got from FIC.

Global: 1125cc/min