MAF transfer datalog for Tweecer

[zenboy99]

Before you run the datalog to tune your MAF transfer, do you clear the KAM? Or is it after you've made a new MAF curve you you clear the KAM?

I'm at work right now and away from all my user manuals, plus I have a busy day and can't look this up before I leave work. Roads are finally dry here and its above freezing so I thought I'd get a good datalog for my hour drive home.

Thanks.

 

[BlackVert]

tuning the maf transfer requires the kams have had time to stabilize. if you clear them before capturing a log, then it will think your maf transfer is perfect, which wouldn't help at all.

you want to wait as long as you can stand it (drive probably 50 miles under differing conditions --cruising, highway, city) so the kams have the best chance to stabilize before trying to use that info to tune the maf. then take as large a datalog as you can under the same type of varied driving conditions.

there is also the variable of the battery voltage (because the lights or wipers are on or other accessories that draw electricity) which can ripple down to differing kams under otherwise similar situations, so try to minimize the differences in the accessories you are running while letting the kams stabilize. compensating for battery voltage variations comes later with the "injector offset vs. battery voltage" function.

grady knows all about that one (among lots of other things grady knows about) ...

most people clear the kam after entering a new maf transfer, but even if you don't, the adaptive logic of the computer would ripple through to the kams.

 

[BlackVert]

sorry for the dissertation, but have you dialed in the injectors yet? usually that is first, then the maf transfer work starts.

i have a program i wrote to help me with this stuff. let me know if you are interested in sending me a log and i can run it for you. it helps dial in injectors and the maf transfer.

do you know my little trick for clearing the cam by loading an a9l tune into one of the tweecer slots?

 

[zenboy99]

Cool, thanks for the info that makes sense. I have my injectors all dialed in with my EEC analyzer program, offset, high, low slope.

I'm super busy at work and wanted to get a good datalog for the drive home before it starts snowing again and my car has to go into hibernation.

 

[zenboy99]

do you know my little trick for clearing the cam by loading an a9l tune into one of the tweecer slots?

No I don't, please enlighten me. I've just been unbolting the batter and stepping on the brake pedal for 30 seconds.

 

[BlackVert]

No I don't, please enlighten me. I've just been unbolting the batter and stepping on the brake pedal for 30 seconds.

http://eectuning.org/forums/viewtopic.php?t=3691