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Old 03-22-2018, 04:42 PM   #1969
mr.nicknasty8
Scooby Newbie
 
Member#: 244192
Join Date: Apr 2010
Chapter/Region: NESIC
Location: Vermont
Vehicle:
2006 WRX
ARC FMIC

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Quote:
Originally Posted by Straight6 View Post
Thanks. So the only way to get this perfect is pretty much a dyno tune ? Reason I am asking is because I have seen few different Etune FTCL logs from different cars by reputable tuners that show this -8 to -10 correction up top. Also, pardon for asking noob questions but doesn't the COBB OTS primarily utilize the MAF sensor for AFR ? So wouldn't be in fact running rich in WOT open loop if that is what is coming up on logs ?
No, it won't run rich. The O2 will read rich while the car is on target. That's how you know the maf is scaled properly. The O2 isn't even an actual wideband. People just call it that because it's able to correct fuel and it's after the turbo
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