How do i read this?

[FR-Sky]

How do i read this? How do I know its good or bad??
It is a stage 2 tune.
Thanks

During IDLE , before drive
Is it normal for intake air T to be that high during IDLE???


After drive
How come intake air T lowered after a mild drive?
I have a greddy intake.

[Wayno]

The sensor doesn't lie. If you think about how engine and intake work and what environment the sensor is in, it should make 100% perfect sense.

[steve99]

Id be more concerned with the 17% ltft, that high and positive usually indicates an exhaust leak, or maf scaling is off. it will vary arround a bit at idle due high intake air temps maybe to 8 or 10%, but 17 usually indicates some issue

[Teseo]

But a leak will throw cel, right?

[FR-Sky]

Originally Posted by steve99

Id be more concerned with the 17% ltft, that high and positive usually indicates an exhaust leak, or maf scaling is off. it will vary arround a bit at idle due high intake air temps maybe to 8 or 10%, but 17 usually indicates some issue

So does that mean i should check the connection of the exhaust system??
I am running stage 2 91 oft, UEL borla header , greddy intake and stock exhaust.

[FR-Sky]

Originally Posted by Teseo

But a leak will throw cel, right?

I dont see any cel popping up.

[steve99]

Originally Posted by FR-Sky

So does that mean i should check the connection of the exhaust system??
I am running stage 2 91 oft, UEL borla header , greddy intake and stock exhaust.

Arrh Gready intake, that will be whats causing high fuel trims , as im assuming you have not rescaled maf to suit intake

[steve99]

Originally Posted by Teseo

But a leak will throw cel, right?

not always

fuel trims max out at 40% when trims hit that then you will throw cell

[FR-Sky]

Originally Posted by steve99

Arrh Gready intake, that will be whats causing high fuel trims , as im assuming you have not rescaled maf to suit intake

Yea...i dont know how...thats why i am having this post on how to read this.
Can you please show me or teach me? Thanks

sorry..i am a novice this....

[steve99]

Originally Posted by FR-Sky

Yea...i dont know how...thats why i am having this post on how to read this.
Can you please show me or teach me? Thanks

sorry..i am a novice this....

Ok its going to require a bit of reading and learning

start here

http://www.ft86club.com/forums/showt...01#post1842501

then when you can log with oft to a file and save logs to computer

you will need to input the data to the vgi maf scaler program

http://www.ft86club.com/forums/showthread.php?t=64790


then you ging to need to learn how to use romraider a tune editor

http://www.ft86club.com/forums/showthread.php?t=79152


if all that looks to much then either put stock intake back on and just get drop in filter or pay someone to scale maf for you

[FR-Sky]

Originally Posted by steve99

Ok its going to require a bit of reading and learning

start here

http://www.ft86club.com/forums/showt...01#post1842501

then when you can log with oft to a file and save logs to computer

you will need to input the data to the vgi maf scaler program

http://www.ft86club.com/forums/showthread.php?t=64790


then you ging to need to learn how to use romraider a tune editor

http://www.ft86club.com/forums/showthread.php?t=79152


if all that looks to much then either put stock intake back on and just get drop in filter or pay someone to scale maf for you

so sad......."put stock intake back on and just get drop in filter or pay someone to scale maf for you"
Will my engine blow up ?!

Ok wait a minute, so first of all, i rec and take the data out from OFT manager? And then i start from there?

What is a normal % for LTFT??

[steve99]

Originally Posted by FR-Sky

so sad......."put stock intake back on and just get drop in filter or pay someone to scale maf for you"
Will my engine blow up ?!

Ok wait a minute, so first of all, i rec and take the data out from OFT manager? And then i start from there?

What is a normal % for LTFT??

it probably not going to blow up.

its probably going to be a bit hesistant or bog a bit when you get on throttle.

but check yor wide open throttle afr it should be low 12 to high 11 on oft tune

but yes log the required parameters put them through the vgi utility it will generate new maf scale for you then transfer into maf table in tune using romraider, then flash updated tune and probably repeat 2 or three times.

your probably aiming for ltft of 5%