ECMlink Help me tune my WOT GM MAF

[EGLTAWLN]

i could use some help getting my WOT dialed in on my 3"GM MAF blowthru setup.

i have fic 650's and b16g with 94 octane.

i have all the sensors nessecary to run evo8mas or Speed density, but i have had most luck with the GM MAF using the ecmlink cable.

i could use all the help i can get and need some feedback on where i am stuck at now.

the cold morning log is just to show how cold it is here and the GMIAT.

the feb26 log is last decent tune and feb27 log is where i am now.

how do i line up boostest and afratio at the same time?

 

[1G Eclipse94928]

i could use some help getting my WOT dialed in on my 3"GM MAF blowthru setup.

i have fic 650's and b16g with 94 octane.

i have all the sensors nessecary to run evo8mas or Speed density, but i have had most luck with the GM MAF using the ecmlink cable.

i could use all the help i can get and need some feedback on where i am stuck at now.

the cold morning log is just to show how cold it is here and the GMIAT.

the feb26 log is last decent tune and feb27 log is where i am now.

how do i line up boostest and afratio at the same time?

DSMlink MAS/MAF Calibration Page

I was gonna do it for you, but you didnt rev high enough, and you should start with the sliders 0'd out.

 

[EGLTAWLN]

i have read this before but wondered if it still applies in V3.

the link you provided focuses on getting the boost sensor lined up with the ecu boostest. when i do that my lc-1wideband and afratio are way off. other sources say to focus on getting my wideband to follow the afratio, but then the boostest goes out the window.

i find i get caught inbetween.

 

[EGLTAWLN]

here are two idle logs.
which one is correct?
the first one is a log where i left the injector deadtime set to the recommended FIC 650cc deadtime number of 210.
the second is a log where i made the airflowperrev 0.25-0.27 at idle and so the deadtime is much different.

both logs seem to have good trims to me. what do you think?


i find that i have hard cold start issues when i go with the second tune(0.25-0.27airflowperrev). it wont idle in the morning until it warms up.
if i run with the first one, it idles fine even in -32celcius.

 

[EGLTAWLN]

i'm starting to think the gm maf in the extreem cold is the problem.
the ecu locks its intake air temp at 27 degrees celcius with the gm maf.
where i am it is -30 degrees celcius currently.
i have read every 10 degreee temperature change affects boostest a few psi.
also there are a lot more air molecules in the air at -30 than there is at +27.

anybody concur?

 

[Calan]

...the link you provided focuses on getting the boost sensor lined up with the ecu boostest. when i do that my lc-1wideband and afratio are way off. other sources say to focus on getting my wideband to follow the afratio, but then the boostest goes out the window.

i find i get caught inbetween.

You may want to read through this thread:

http://www.dsmtuners.com/forums/ecm...stest-boost-gauge-not-equal-attached-log.html