EFIDynoTuning Forum

thats wayy too high youll always be in OL

set it just over your decel load usually around .14

Ok thanks for that info. I’ll lower it to that and give it a shot

well I was able to log some miles and fn338 has done the trick! found my sweet spot to be .17 load

as always thanks for the help!!

thats not going to fix it tho

you need to adjust the airmass correction so it doesnt go rich on decel

then you can re enable CL decel and all will be perfect

Is there anything wrong with leaving this way? I thought you said earlier it should be in OL for dfso?

I thought it was literally perfect yesterday. I could downshift and decel all I wanted and when I got back on the pedal or clutched in to a stop it was immediately back to stoich and when clutched in the rpm’s dropped perfectly to idle and didn’t overshoot.

When in CL on decel it yanks the fuel so the WB reads lean which then makes the computer ramp rich. Changing the airmass correction table previously trying to help this did nothing?

*edited original first post as wording may have been misleading*

no

dfso is open loop regardless has nothing to do with any of that

that means you dont have the decel table code enabled

if it decels perfect in OL then adjust the table and it will decel perfect in CL too
should not make any difference if in OL or CL

Question about the contens of this thread. I have FN1035 MAF backlow correction (decel lambda correction) opened up but I dont think I understand what I should change the values to. All 1's right now, and I understand I don't want to change anything below 2250 rpm, but I don't understand the first column values which start at top at .10, increasing by increments to finish on the last row as .6

I think I'm supposed to enter my acual lambda values at my corresponding rpm to (in my case) increase fuel on decel but I'm not confident on what the first column values represent and which row I should enter my lambda values in?

Sean

you dont have tunerpro setup correctly read the getting started write up

y axis is load

juat change .1 load at higher rpms and .1 and .2 load at 2250-3k rpm

k, fixed it. Forgot to reverse rows when I started using newest files.

So I just worry about changing values for 2250 & 3000 at corresponding decel loads? If Closed Throttle decel load at 2250 is .104, I just insert that value where the 1 is at .2 load under the 2250 column and if Closed Throttle decel load at load at 3000 is .0972, I replace the 1 under 3000 with .0972 at .1 load?

What about all the remaining values above the load #'s at 2250 and 3000? given I don't think I will see closed throttle decel loads above .2?

I won't touch anything below 2250, and I will enter .1 in all the higher rpm values. Have I got it right?

Sean

no absolutely not

you have to put in your decel lambda

surely your not deceling at .1 lambda the engine would stall

you only change the cells you use