Issues with my ecu when tuned

[slowmo]

I dont think fuel is the main problem because several cars were tuned on the same fuek that I used without any issues. The data logs show are different to the tune map the car is staying with the tuner hooing that the ecu would adapt to the changes

Originally Posted by Bach415

Try changing to a different type of fuel/gas station then go back to the dyno to see if the problem still exist if the type of fuel/fuel content is the issue.

[slowmo]

No I did not reset the ecu before the basline dyno however the ecu was reset when we faced the issue

Originally Posted by Foobar

Did you reset your ECU before you got your baseline dyno? If not, you may have to wait a while for the ECU to get used to the new tune. I think it's best to reset the ECU before each run if you're trying to do comparisons, no?

[slowmo]

You might be right about the frs loosing power on a 3" exhaust na setup but im taking a different route, the na tune is temporary until I receive the turbo kit.whats worrying me is that if the ecu is going into some safe mode or taking time to adapt then FI tune would be a nightmare

Originally Posted by FeaR-S

with the 07 civic si made more power with 3" while the FR-S lost power. no tune just base before the 3" and returned a few days later and 3" lost had to be tuned to get back +1 lol on E slightly different story.

[ramiram1984]

Sometimes I feel a tune is just some conspiracy...

[FeaR-S]

Originally Posted by slowmo

whats worrying me is that if the ecu is going into some safe mode or taking time to adapt then FI tune would be a nightmare

most flash then run the car if you just flash and are on the dyno you showed do a few pulls for the calibrations to be set but check with @FA20Club.com or @Visconti or whichever ecutek tuner you will be using.

[Hawaiian]

Hmm 3rd party nameless header dyno on the last page of that thread.

Edit: a prototype from Jan.

[slowmo]

Car is running smooth I think the ecu needed time to adapt with the new map

[mad_sb]

Originally Posted by slowmo

Car is running smooth I think the ecu needed time to adapt with the new map

A for learning..... Stock IAM is .7, if the tuner set's it to 1.0 you will get full advance on the first pull ( a few degrees more timing ). Other than IAM, there are the long term fuel trims (these should be reset with each flash or ecu reset). Yes those two things combined could add up to 15whp or more, but from what you describe, it was pulling more and more timing each pull due to learned knock retard so whatever direction your tuner was trying to go was the wrong direction.

It would help if you posted dyno plot and you can send me the data logs if you want an impartial opinion.

Originally Posted by slowmo

... first of alk the car ran a base dyno map with an astonishing 169 whp max power...

Was this the map you drove in on or was it the base flash provided by the tuner?

Originally Posted by slowmo

..the car did the 1st tune run and I was shocked car dropped 13whp. 2nd run dropped 19whp and it kept going on until the dyno kept reading 145WHP!!!

Were theses multiple pulls on the same tune file, or did he make a pull, change the tune, flash the tune then make another pull?

If they were back to back pulls, you lost power each time either due to learned knock retard or excessive temps or both.

[Opposed]

Originally Posted by ramiram1984

Sometimes I feel a tune is just some conspiracy...

How so? It sure was the real deal for me...

[slowmo]

Originally Posted by mad_sb

A for learning..... Stock IAM is .7, if the tuner set's it to 1.0 you will get full advance on the first pull ( a few degrees more timing ). Other than IAM, there are the long term fuel trims (these should be reset with each flash or ecu reset). Yes those two things combined could add up to 15whp or more, but from what you describe, it was pulling more and more timing each pull due to learned knock retard so whatever direction your tuner was trying to go was the wrong direction.

It would help if you posted dyno plot and you can send me the data logs if you want an impartial opinion.


Was this the map you drove in on or was it the base flash provided by the tuner?



Were theses multiple pulls on the same tune file, or did he make a pull, change the tune, flash the tune then make another pull?

If they were back to back pulls, you lost power each time either due to learned knock retard or excessive temps or both.

I would try to get dyni plots by tomorrow. It was the stock map when I drove in

[FeaR-S]

nice good to hear you are running.

[slowmo]

Thanks

Here is a video of the dyno run

[ame="https://www.youtube.com/watch?v=23QVrkyQRos&feature=youtube_gdata_player"]Tuned Subaru BRZ 2013 - YouTube[/ame]

[xjohnx]

Originally Posted by slowmo

Thanks

Here is a video of the dyno run

pretty sure he was looking for a video of the run that didn't make power.

[Fizzo]

I was probably the last car he tuned before urs, i never had that problem. i didnt do a base map since i installed the mods myself. but when he uploaded the custom maps, it did drop a bit, but on the runs after, it kept going up till i got to 187.5 whp and 150.9 tq