Learning View Snapshots \ Discussions

[alexeiwoody]

Good to see you blokes progressing your studies in the area. Lucky to have Bruce and Matt helping out

[owen]

Owen

That knock will be from the O2 sensor failure having no closed loop

Front o2 sensor has been replaced. No more codes. No more knock

[3rspecb]

Chubbs... Just quote this post to comment.

Question for the experts. The ECU hasn't pulled any timing. If the tuner left Advance Multiplier (initial) at .500 as per OE, could the LV be showing that the ECU is working it's was to IAM 1 ?

[dr20t]

Chubbs... Just quote this post to comment.

Question for the experts. The ECU hasn't pulled any timing. If the tuner left Advance Multiplier (initial) at .500 as per OE, could the LV be showing that the ECU is working it's was to IAM 1 ?

Depends on the kca tables and limits

But theoretically yes

[bass_straitener]

Chubbs... Just quote this post to comment.

Question for the experts. The ECU hasn't pulled any timing. If the tuner left Advance Multiplier (initial) at .500 as per OE, could the LV be showing that the ECU is working it's was to IAM 1 ?

The car was tuned over a week ago and driven regularly. Should've reached IAM 1.0 by now if it was going to.

[brainy]

This car was driven near another car with a screamer pipe, so the best answer for this is that the noise scared off this car, and pulled the IAM back.

[dr20t]

This car was driven near another car with a screamer pipe, so the best answer for this is that the noise scared off this car, and pulled the IAM back.

Haha that's fkn awesome

Off topic but screamer pipes are so 2010

[3rspecb]

No it wasn't, IIRC the car was tuned on the Thursday before the trutrack meet on Sunday.

Not trying to start a shite fight, just another angle, thanks Mick.

[KiDo_Tuning]

No it wasn't, IIRC the car was tuned on the Thursday before the trutrack meet on Sunday.

Not trying to start a shite fight, just another angle, thanks Mick.

IAM rises to 1 within 20kms. It is pulling 1/3rd of the KCA timing most likely from AFR's being 1 AFR point leaner on boost.

[owen]

This car was driven near another car with a screamer pipe, so the best answer for this is that the noise scared off this car, and pulled the IAM back.

[KiDo_Tuning]

OK, so a few of you have noticed how the D range AF#1 value can affect open loop fueling by now right?

Here is proof of why it works... the EVO guys do it http://www.evoscan.com/technical-vehicl ... ot-fueling
http://forums.evolutionm.net/evo-x-engi ... ing-7.html

Turning off Open Loop Fueling corrections influenced by closed loop = accurate AFR's

Also, for those who have ever seen an EVO X tune, you will notice how the engine is at WOT by wastegate pressure Yet again, the EVO is ahead of Subaru

[SamD]

Kido tune a few months ago and everything going great!

Did mention at the time that my front AFR sensors were on the way out.

There looks to be a discrepancy on the airflow ranges, I plan to replace both but how can you tell which one is failing? Does the failing sensor detect less fuel and give your a higher value? Also is sensor #1 left or right?

[KiDo_Tuning]

Kido tune a few months ago and everything going great!

Did mention at the time that my front AFR sensors were on the way out.

There looks to be a discrepancy on the airflow ranges, I plan to replace both but how can you tell which one is failing? Does the failing sensor detect less fuel and give your a higher value? Also is sensor #1 left or right?

IAT at 65 celcius...

Bottom four AF#2 Learning values should be shifted across one cell

Looks like bank 2 AF#2 is the one on its way out, ECU is disabling fuel trims at idle(0% in left most cell)

[SamD]

Thanks Matt! Yeah I saw how high my temps were, that was after a reset and 6 hours of driving on a warm Brisbane day!

Do you know which sensors are left / right?

[BlackSTI]

So attached is my mates learning view (08 GTB) which is tuned by Mercury Motorsports (with an MRT / Euteck tune). The main concern I have is that IAM is not sitting at 1. Any suggestions on what should be logged to help figure out the issue. I'm about to have a search around for suggestions, but thought you guys would have some interesting input.