On my way to work today the gtp started acting funny. Its fine till I try to go past 2/3 throttle. The supercharger spools up, my boost gauge goes up, but it just shudders like its not getting enough air or fuel. Tranny is shifting ok...Any helpers out there please

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bigbrew08

Could be a clogged fuel filter or cat converter.

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Bright Red 2008 G8 GT

Mods: DRCUSTOMPARTS Center Gauge Bezel
Superchips ECM/TCM Tune- Volant CAI
Solo Axlebacks - HID's
Holden V8 Badges
My Website

The check engine light flashes whenim on the s/c

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bigbrew08

This happened to me when my grand prix was misfiring. Ended up being a combination of bad wires and a bad coil pack. How new are your plugs, wires, and coil packs. Mine went bad around 75k I believe.

Edit: just saw your new post, get it scanned to check codes!! i bet it will say misfire

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2004 GTP COMP G
K&N Intake, MPS, 3.5, Overkill PCM, SLP Powerflo, GTX Tips, SLP Headers, SLP Cat, 180 tstat, MSD Coils
Aeroforce Interceptor, Tints, 17" Elbrus Wheels

Flashing CEL usually means multiple misfires. Check the codes and take it from there.

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Dubs:00 VW GTI VR6, Low and Slow 91 VW GTI 8v, Shave the Bay!! 91 VW Cabriolet 8v, bitch Basket
GP's:04 GP GT, Past now G-Ma's Girlfriend's 97 GP GT, "Project Pink Power"

i just had the front valve cover replaced two days ago, i have not drove the car since i got it back on the way to work today it acted up, my neighbor has a scanner hopefully we can get a code and i can get this damn thing fixed. acually its a good car but i do need to get rid of it soon just bought a boat i need a truck to tow it with so the gtp is going to have to go. 04 comp g 62k 5 button dic, two sets of rims two sets of tires one set is the origional that i use for a set of snow tires.

-- Sat Nov 26, 2011 10:29 pm --

p0305 cyilinder 5 misfire my awesome neighbor has a scanner!!!

-- Sun Nov 27, 2011 7:19 pm --

spark plug wire went bad....easy fix they were the origional ones.

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bigbrew08