OFT Stage 1 low IAM
 

Hey guys,
I promise I have searched a lot and have not found a great answer to my issue.
I previously had a Perrin CAI and the OFT Stage 1 tune that I scaled using Perrin's Scaling.

I just swapped the stock intake back on but kept the Perrin intake tube. I reflashed with the unmodified Stage 1 tune and am now getting very low IAM. Anywhere from .45-.65. I thought it may be gas, but I filled up at a QT with 93, hoping that it would help, and it hasn't.

I am wondering if any of you have any insight as to why this may be?

I also regret never having paid attention to the IAM with the intake on.

Is there anything from the intake install that could be causing my issue?

Also forgot to mention my LTFT seem fine, less than 5%.

Also this is on a 2013 FR-S with just over 100k miles.

Try cleaning your maf maybe during the install you got it dirty or something

Sent from my IN2017 using Tapatalk

I will try that first thing in the morning. I have a can of MAF cleaner at work.

Do a custom tune and stop expecting miracles from a canned tune
even stock rom, that is a canned tune, knocks often
If you want perfection you need to custom tune, specially if you make intake mods

This might seem like a dumb question but do you have a aftermarket catted or catless header with that tune?

I do have a Gruppe-S uncatted UEL but havent installed it yet. I am waiting to get this issue figured out before I add another variable in.

I did a quick log last night, if someone could look at it and let me know what they think.

https://datazap.me/u/hegreer1/log-16...=0&data=1-9-14

The Stage 2 tune is for catted aftermarket headers, IIRC. If you're still on the stock header, that might be your problem. Should be a Stage 1 flash.

Sorry guys, I did not mean to say stage 2 tune. I have the OFT Stage 1 flashed on the car.

Just cleaned the MAF and checked all of the hose clamps, and went for a drive and held a .80 AIM.

Id try another log with the MAF cleaned now that IAM is holding higher. AFR before looked lean to me but others can chime in with more experience.

On the subject of tuning @tomm.brz above did my custom tune. I'd consider that to dial your setup and fuel with your header. I have the same header my self.

Okay, I will do another log tonight and put it up. How are you liking the Gruppe S and tune? Are you running 93 or E85 with it?

With tommasos tune the car runs great. I run on Canada Petro 94 which is probably somewhere between good US 92-93 octane.

Pulls nicely, especially when air intake temps are below 75f. I run the car all year round. My winter tune needed some adjustment for our hot humid summers. As it turns out going from 20f intake temps to 90f requires some adjustments :lol:

Summer
https://datazap.me/u/mygotousername/...-7&zoom=55-126

Winter
https://datazap.me/u/mygotousername/...r-pull-log-v18

Those logs look great. I messaged him about customizing a tune for me as well. I appreciate your help.