Something seriously wrong?

[Christian628]

I put on gruppe-s UEL headers, overpipe, and replaced the gasket on my Invidia n2 a couple days ago. Fuel trims were slightly above -5 and I was going to collect the logs this week. Noticed today while idling at work that my LTFT was -13.2. When I got home I reflashed the off the shelf stage 2+ tune in thinking maybe it was something I have changed in the tune with the UEL headers causing it. It’s still wanting to climb up to high negative LTFT sitting at -9.8 after just a couple of minutes. I cleaned my MAF Sensor before doing the reflash. I don’t hear a leak and I’m using grim speed double thick gaskets. The O2 sensor that I can reach from opening the hood is nice and tight. Not sure where to go from here other than jacking up the car and trying to tighten the second O2. I’m running a mishimoto true cold air intake. Which I was told had basically stock maf scaling. Please someone help.


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[jflogerzi]

Check for leaks at all connection points

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[NoHaveMSG]

What intake?

Also need a lot more info, you usually get better help posting a log to datazap.me and the guru's can help you out. Check out steve99's thread on logging. Having -13.2 LTFT doesn't give us any info since it has no context. If that was a cold start then I wouldn't think anything of it. If that was full operating temp and at idle, that is a different story.

https://www.ft86club.com/forums/show...01#post1842501

[Christian628]

Originally Posted by jflogerzi

Check for leaks at all connection points

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Leaks where? Intake or exhaust?


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[Christian628]

Originally Posted by NoHaveMSG

What intake?

Also need a lot more info, you usually get better help posting a log to datazap.me and the guru's can help you out. Check out steve99's thread on logging. Having -13.2 LTFT doesn't give us any info since it has no context. If that was a cold start then I wouldn't think anything of it. If that was full operating temp and at idle, that is a different story.

https://www.ft86club.com/forums/show...01#post1842501

Mishimoto true cold air intake.
Full operating temp at idle.
I know how to log. What do I need to log? Same stuff that I would log for rescaling?
And just it idling or drive around a little bit?

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[zc06_kisstherain]

since you reflashed, car needs to learn new setup so you need to drive around.
i would datalog normal driving for 10~15 min and WOT from 3rd gear of 3K RPM to redline for 2~3 runs and post logs

[Christian628]

Originally Posted by NoHaveMSG

What intake?

Also need a lot more info, you usually get better help posting a log to datazap.me and the guru's can help you out. Check out steve99's thread on logging. Having -13.2 LTFT doesn't give us any info since it has no context. If that was a cold start then I wouldn't think anything of it. If that was full operating temp and at idle, that is a different story.

https://www.ft86club.com/forums/show...01#post1842501

I have one of just idle if you want it.

https://datazap.me/u/christian628/lo...9?log=0&data=1

[Christian628]

Originally Posted by zc06_kisstherain

since you reflashed, car needs to learn new setup so you need to drive around.
i would datalog normal driving for 10~15 min and WOT from 3rd gear of 3K RPM to redline for 2~3 runs and post logs

I have one of just idle if you want it.
https://datazap.me/u/christian628/lo...9?log=0&data=1

[zc06_kisstherain]

Originally Posted by Christian628

I have one of just idle if you want it.
https://datazap.me/u/christian628/lo...9?log=0&data=1

probably not.
I am not expert on reading datalogs either
but here's my old file for local and highway driving around. change your data type of category. it's not enough information. add afr, STFT, LTFT, ADV, etc (look at mine)

https://datazap.me/u/zc06kisstherain...y?log=0&data=1

GL

[Christian628]

Originally Posted by zc06_kisstherain

probably not.
I am not expert on reading datalogs either
but here's my old file for local and highway driving around. change your data type of category. it's not enough information. add afr, STFT, LTFT, ADV, etc (look at mine)

https://datazap.me/u/zc06kisstherain...y?log=0&data=1

GL

Do you all not have the ability to click on those values to add them to the chart? I don't understand how to work this website.


Do these links work? I had to do WOT in 2nd gear I read that was fine. Not a lot of straight roads around me that are safe for me to redline 3rd gear.

https://datazap.me/u/christian628/lo...7-8-9-10-11-12 Driving around
https://datazap.me/u/christian628/lo...7-8-9-10-11-12 WOT 2 Gear
https://datazap.me/u/christian628/lo...7-8-9-10-11-12 WOT 2 Gear 2

[NoHaveMSG]

Originally Posted by Christian628

Mishimoto true cold air intake.
Full operating temp at idle.
I know how to log. What do I need to log? Same stuff that I would log for rescaling?
And just it idling or drive around a little bit?

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Are you using the OTS Stage 2 maf scale or did you change it?

[Christian628]

Originally Posted by NoHaveMSG

Are you using the OTS Stage 2 maf scale or did you change it?

I have not touched maf scaling at all and I’m on the normal stage 2 + oft tune
My intake is supposed to be practically stock scaling.
Take a look at my logs. The moment I go wot my trims are acceptable. I haven’t taken a look at the trims for me just driving around yet. Going to take a look when I get home from work.

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[NoHaveMSG]

Originally Posted by Christian628

I have not touched maf scaling at all and I’m on the normal stage 2 + oft tune
My intake is supposed to be practically stock scaling.
Take a look at my logs. The moment I go wot my trims are acceptable. I haven’t taken a look at the trims for me just driving around yet. Going to take a look when I get home from work.

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You need to rescale the MAF.

Closed loop vs. open loop. That is why you need to log injection mode. It is all in the link I put in previous post along with other info if you look in steve99's sig.

[zc06_kisstherain]

Originally Posted by Christian628

Do you all not have the ability to click on those values to add them to the chart? I don't understand how to work this website.


Do these links work? I had to do WOT in 2nd gear I read that was fine. Not a lot of straight roads around me that are safe for me to redline 3rd gear.

https://datazap.me/u/christian628/lo...7-8-9-10-11-12 Driving around
https://datazap.me/u/christian628/lo...7-8-9-10-11-12 WOT 2 Gear
https://datazap.me/u/christian628/lo...7-8-9-10-11-12 WOT 2 Gear 2

You need to add them in your OFT or ECUTEK. Not from datzip

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