i have boost creep....

[bxwrx3]

im still wondering why i have boost creep when i flashed XPT stage 2. mods are invida V2 downpipe megan racing catback and SPT SRI. Heres a video of what happens when im hitting it. its not actually me and the only difference is my cruise light starts flashing with the CEL.

[zerokelvin]

Just wandering how cold is outside when you were doing this?

Mine started doing this all the sudden but it was like 35 degree's out.

[dumdum]

If you are running a catless TBE then that maybe part of the problem.Enginemanagement cannot fix boost creep.It is a design/mechanical issue that require a physical change to the turbo wastegate.Pretty well known issue on the VF39 STi's and any 2.5L WRX with a TD04L-13T.

[JBWRX06]

i am stage 2 catless, running 17psi and have not thrown a code

[Longshot]

Originally Posted by dumdum

If you are running a catless TBE then that maybe part of the problem.Enginemanagement cannot fix boost creep.It is a design/mechanical issue that require a physical change to the turbo wastegate.Pretty well known issue on the VF39 STi's and any 2.5L WRX with a TD04L-13T.

Ron what if he altered the map (fuel, timing, boost) from the OTS setup. Could that help him run smoother and get rid of the creep/spike?

[dumdum]

Creep and spike are two different things.Spike is a momentary rise above preset boost levels durring first onset of w.o.t. Creep happens at high rpms after boost onset and is incontrolable.You could have 0% solenoid dutycycle (wastegate pressure/7-10psi) and be seeing 15+psi at redline.The video shown is worhtless as it shows nothing relevent to boost preesure.A datalog would have been 20x more helpfull.

Everything you need to know about boost creep - Factory 2.5L Turbo Powertrain - NASIOC
Boost Spike vs. Boost Creep - DSM Forums
How To Cure Boost Creep By Porting - DSM Forums
boost creep cobb - Google Search

[kh15]

is there a chance of boost creep with a catted dp and a protune on the 2.5 liters?

[dumdum]

Originally Posted by JBWRX06

i am stage 2 catless, running 17psi and have not thrown a code

What E.M.?

[dumdum]

Originally Posted by kh15

is there a chance of boost creep with a catted dp and a protune on the 2.5 liters?

Yes but not as much.The colder it is,the better chance of it happening.Durring summer it wouldn,t really be a problem.

[pddvl1]

I replaced my stock wastegate solenoid with the gm style from a typhoon and my spike whet away , you have to retune the boost map in the computer with open source and it works fine no more spike on my internal wastegate and no creep

[IH8PVMNT]

IM NOT PROTUNED YET HAVE cobb tbe and cobb ap stage 2 and 5th gear at WOT i throw a cel for overboot and wastgate performance..

[Longshot]

Originally Posted by IH8PVMNT

IM NOT PROTUNED YET HAVE cobb tbe and cobb ap stage 2 and 5th gear at WOT i throw a cel for overboot and wastgate performance..

A 3port solenoid before your tune might help too man, not to mention give a bit more room to tune up the boost safely.

[hollingst]

Did you have a vent to atm bof installed? The stock location of the MAF can cause some serious issues here. I had a similar problem and when the code was read it was for rich fuel. Retuning with relocating of the MAF solved this issue.

[mosc]

CODE! he said CODE! I swear I heard: "I threw a ####ing TOAD!!!!"

[hollingst]

Have you had the CEL read to see what it is ?