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Tuning Dilema.

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hypergenesis

15+ Year Contributor
886
1
Oct 21, 2010
Tracy, California
Hey there. So i just installed my Prosport Wideband with dsmlink v3 and a new ecu and now I am ready to tune. Problem is the laptop I was planning to use to tune took a pooper on me and now im stuck trying to figure out what to do. So far on start up the car runs at 14.7 but then slowly moves towards 16 and 17 AFR for some reason.
I wanted to know if this was worth the hassle, Take my desktop to my garage and run logs based on idle time and revs to be able to make it run not so rich at idle? Would it be worth logging to bring the values down?

I currently need the car to drive and honestly do not want it running super rich
 
A good idle log, and some cruising around would be good as well. you def want it at full operating temp. we'll do the wot later. walk before running, and you'll be happier in the long run.
 
IDLE LOG 1 IS THE , IDLE LOG
IDLE LOG 2 IS THE CRUIS LOG

Sorry forgot to change the name. I wasn't sure on how exactly to do the cruise log other than the way it sounded so I ended up just cruising around for a bit and a good portion of it is in 4th gear going 40


Also I never removed the front o2 because it was stuck. Should I atleast unplug the front o2 sensor? If I havent will that cause DSMLINK to come up with incorrect values since the front o2 is being graphed not my wideband o2
 

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you can do an idle log with a desktop. And these are logs with laptops, i had to get an ac power outlet for my cigarette lighter and then use that to power my computer monitor since my laptop's screen dosent light up LOL. Ive went through the demos and Ive already started with tuning like that. I want to know how its going so far with critiques
 
your O2 Sensor not cycling. make sure you run your car at closed loop mode. then post your idle again.
 
Yes you def need a working o2 sensor. or you will be shooting in the dark. so get that fixed and post up another log.
 
Sorry about the delay ive been really busy.

UPDATE
So now I got the ECU reading my wideband and I have it running on NBS stays at 14.5-14.7 on idle and around there on cruise happily heres the new log that actually looks right
 

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Now capture LTFT Lo, LTFT Mid, Combine FT, MafRaw and Closed loop, that way you can use average maf reading while you are cruising.
 
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