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Old 02-22-2019, 11:45 AM   #2972
Demolitionist
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Join Date: Jan 2019
Drives: 2014 Subaru BRZ
Location: VA
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Fixed!

Quote:
Originally Posted by toast View Post
What kind of 'trouble'? Are you using the Edelbrock tune or did you go with Delicious?

I found that after each Delicious update the car still ran like garbage for a few days when trying to smoothly leave a stop. I felt like I was learning to drive all over again because the dead pedal that occurs after a reset gets compounded by the fact that the instant you go a little too far with the throttle the bypass valve starts to open and the power ramps up very fast. In my case it takes about 4-5 days of daily driving before all the learning fills in the various trouble spots from 1500-3000 rpm. Zach said that the 13-14 manual cars were the worst for the dead pedal as well.
Sorry for slow response but I wanted to make absolutely sure everything was fixed before I gave an update. TL-DR : It was a bad custom tune. With the tune replaced, my car runs great now.

Regarding the original issues, FTs were high at idle, usually around 21% and the car ran rough. It would bog down and stall when giving it gas to take off from a dead start. It evened out at cruise and the FTs would get considerably better but the car would break up and give me crazy logs if I went WOT. Pedal dead zone and feeling the ECU working through re-learning everything was definitely a thing that was present, but I'm used to that from having flashed my car quite a few times in the past. There was way more going on than the usual quirks of a re-flash. About five weeks of my car sitting useless in my driveway, logging and re-flashing a few times for my tuner, many hours of me checking every single thing I could myself, and three trips to two different garages to verify that I wasn't missing something all got me nowhere. Mechanically, the car seemed solid and the Edelbrock install looked perfect.

Eventually, as I used the weeks of not driving my car to research more about tuning and what to look for in how an ECU thinks (I knew virtually nothing when I started, but now I know slightly more than virtually nothing), I started to notice some things that had me doubting the custom tune that I was using. I ended up switching over to Delicious and Zach hooked me up with a solid tune. Even the initial tune was leaps and bounds ahead of what I was using and now that everything is dialed in, the car runs amazingly well. Thanks to Delicious and Zach, this story has a happy ending.
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