Well, as previously posted, my car is experiencing an odd boost fluctuation. It's gotten better since my ECU reset, but I just want to be certain it's not a mechanical issue that needs to be fixed.

Problem: At full throttle boost goes to 18.5lbs (Per access port live boost reading) and then down to 14, then back up. This continues untill I ease off the throttle. If I gradually press on the gas it just boosts to 17lbs and holds steady (custom tune).

On Cobbs forum it was suggested it might be my Factory blow off valve, Vac lines, or waste gate.

I'd like to take the car to a Bay area mechanic/shop that can do a diagnostics and tell me if there's anything wrong with the above mentioned parts. I want to avoid dealerships,...well, because they suck. I know there are plenty of tuner shops, but where can I go for a diagnostics?

Thanks,
Chris

 

do u have a bov? or replaced any vac lines?

 

Everything on the engine is stock.

 

slipping clutch?

 

you can try kevin at auto headquarters in redwood city. he used to work as a subaru technician, and works on my car for a good price, does great work, honest guy.

 

go to licmotorsports

Adam is very good @ diagnosing things

Once you go to LIC chances are you won't want to go elsewhere

www.licmotorsports.com

They aren't a tuner/mechanic shop as they don't tune, all they do is work on subarus all day

YWIA

 

If you were closer I'd hook my scanner up and check your monitors ready status, at least it would help point you in the right direction. What cel did your car bring up last time?

 

Does gruppe s do this, not sure but they may

 

You are in Larkspur, LIC in Novato. Need we say more... And, Adam has factory scan tools over there.

 

that is correct, we're 7 miles up N 101 from you...feel free to give us a call.

-Noah

 

if everything was fine before the tune, i would suspect that is what did it

 

Noah,
Normally I only let you guys touch my car. I've been there twice now already for tune ups and basic stuff. I'm located in Discovery Bay now (Had to get closer to work). I'm thinking I'm just going to have to make the drive up there...

I'm supposed to go up and see some family anyway. I guess I could kill to birds with one stone. I'm thinking we could diagnose one day,...then order parts if needed, I'll come back another day for installs? There's no way I'd be able to leave my car there over night. I'd be stranded. I'll get in touch with you.

Chris