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I don't have any answers, but it sounds like you're getting turbulence in the maf at higher rpms (cam issue/valve float?)

I too have an l99 that randomly drops timing and bucks.. speed density...

tr6's gapped at .30 example of event occurs at 4mins 54 seconds... tune and log added

I've had an issue with my 2013 l99 for a while now and haven't been able to figure it out..

What happens:- the car will feel as though the brakes are being touched for a split second the car will...

If the car has the stock converter then I would suggest loading the stock trans tune back in it and seeing if that corrects the issue.. who knows what's been messed with and by whom..

I have a 13...

Did this solve anything.. I'm having a similar issue with an e38 except my dynamic airflow is maxing out for a few frames then returning to normal.. computer pulls timing and the car feels like I got...

Looking for solutions to an issue I'm having with an l99 camaro. Car is currently turbod but issue occurred also before the turbo, on the stock tune. The issue disappeared after i had reverted back...

It's cool bro... if we all got it right all the time there wouldn't be any need for forums. Checks and balances.

Absolutely.. I'll be posting updates in this thread.

Thank you

I changed the ve table and injector data. attached is the injector data I received and the modified tune file. does it look right?

Camshaft is the stock l99 vvt cam

I do see my ve table is way off compared to 1021hp ve.. I'll will try his ve table...
I'm supposed to have data for these injectors.. shouldn't I be using that somehow as opposed to fudging the...

here is my stock file.. my target afrs were 14.16 for stoic, 12.5 for pe then be starting at low 11's and lower until I dialed in the fueling.
I do not have a return style fuel system.
thank you...

I do not. It's the stock fuel system with a zl1 fuel pump. When initially trying to get the car to run, it ran like shit... I ran a search for id1000 in here and found someone who posted a tune.. 2...

It was made in beta. You need beta

advice needed

I'm new to tuning, I'm working on a 2013 Camaro ss auto with a custom rear mount twin turbo setup.. I just switched over to the 2 bar OS. made some changes and filled the ve table with what I think...