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EpTxFirefighter 08-19-2010 09:50 PM

Power loss a week after protuned
Hey guys, I have recently encountered a problem. My car had been protuned and was running really strong for a week and now it just isn't pulling like it was. I know it's not that I got used to the power or anything. I mean it lost a ton of power. It idles and runs fine but when I give it gas, the sti just doesn't wanna go. There isn't any weird sounds or anything.

There isn't a boost leak. I have checked thoroughly.

As far as mods, I have: invidia dp & exhaust, cobb sf intake, 50/50 bov, cobb ap.

Any help or ideas where to look is much appreciated

EpTxFirefighter 08-19-2010 10:02 PM

Forgot to mention that I have a Walbro 255lph fuel pump

Chase 08-19-2010 10:52 PM

Your boost gauge reads a bar and then some in third gear or higher when it's floored?

pzr2874 08-20-2010 11:59 AM

No CEL's ??

Bet it's a boost leak... I know you already looked but there are a TON of places to look.

When did you notice the power change ? In the middle of a pull or after it sat for the night ?

EpTxFirefighter 08-21-2010 10:20 PM

There is no CEL and it was noticable the next day. It seems like the power is there one day but gone the next.

When I had gotten the new map I had a bad battery. Could that possibly have something to do with it?

Chase 08-22-2010 11:09 PM

Cant imagine it would... again, does your boost gauge read above a bar when floored?

EpTxFirefighter 08-23-2010 07:29 PM

Ok I noticed now that when it's running weak it's only hitting 10 psi on all gears. When it's running strong it's getting up to 20 psi in 3rd - 6th gear. I might try and reflash the map. Maybe that might do the trick.

RedScoobie 08-25-2010 07:18 PM

what did you use to pro tune ? Cobb ? Can you post some of your logs

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