ok so i just put in a vf39 on my 2002 wrx and i took it out for a drive. As i am going everything is fine and then i came to a stop. I wanted to try to see how fast it takes off and as i am working up to the red line area car stalls for a moment and check engine flashed and then i just changed to 2nd and it does the same thing as i am lurking up the redline area..i was just wondering if its normal...

I am running cobb accessport v2
vf39
07 sti BLUEs injectors
Walbro Fuel pump
catless xs power 3in dp and exhaust.
ssautochrome tmic.
cobb intake.

 

R U tuned for those mods

 

may be the injectors. what is the cc? the 06 wrx injectors are bigger. i would go with the pinks.it maybe a fuel cut.

 

injectors are 565cc...same as the 06 wrx injectors. thats what i was thinking..it maybe a fuel cut..but i dunno..the CEL only goes on for that second and turns off. when i change gears or lets off gas

 

You're getting knock, either real or phantom. You shouldn't be getting it either way though. Pull the codes and you'll most likely have a cyl X misfire. Make sure you're using the CA 91 octane map (VF39-S ACN 91oct). Also check to see if you've got a loose heat shield. That'll sometimes do it. Oh, and stay off it till you figure it out.

 

thanx! bushflyr..i'll check it out. maybe the map..

 

ok so i found that i wasn't runnign VF39-S ACN 91oct but i reved it to 6k and the CEL went on and my RPM dropped like if i were to hit the fuel cut...just wondering if that how its suppose to be..

 

No, that's not how it's supposed to be. Switch your map to VF39-S ACN 91oct, reset your ECU, and try again.

 

ok..so when i rev..no gears..it cuts me off at 6k..but when im in gear..i can hit redline..but when i let go it sounds like a pop..any other ideas? CEL doesn't stay on..so i can't read whats wrong with it..and i reseted the ECU.

 

If I were you I'd stop detonating your engine before you blow the thing up. Pull your boost solenoid and run a line from your compessor outlet to your wastegate and bring to Paul so he can see what's going on.

 

haha...yea *** it..had enough messing with this thing..probbaly just go tomorrow and have someone know what he's doing then me trying to get it figured out..proabably just show up there early..i know he's a busy guy..just don't want to bother him if its just something minor.

 

Minor things turn major really quick. Keep it at 4K or run at wastegate boost. Haste makes waste.

 

sounds good..cant wait til i get htis resolved

 

Why don't you post up what you did to try and solve it? Did you follow our suggestions?

 

yea i changed the map to the one you said to and checked the heatshield...and no luck..still the same.