Originally Posted by bamaboy22

Ok I'm experiencing somewhat the same problem. When first cranked take off 1st gear will boost 10psi then 2nd gear at 4k the car will fall on it's face and not boost anymore then 5lbs it goes to 5 then drops back to zero. On the tech 2 it's showing at idle 14lbs of boost and when I hit 10 in 2nd it's at 28lbs on the scanner. I've pulled vacume on the holding tank behind the tb and opened the bypass valve to check if it's sticking and pulled vacume on it and you can hear it moving. Now with me being a tech and having gmpp I can get away with ALOT of repairs lol. But I had the following codes
P0451
P0497
P0455
P0101
So I replaced the evap purge canister cause face it they go out. Then I got thinking about the maf it's been raining a lot and to he'll with it I'm getting paid to put free parts on my car put one on. Cleared codes and the only one coming back is the p0101.... So now I'm at a loss. I've come up with the charge bypass valve solenoid(on manifold 3 vacume lines on it) but I honestly don't think this will fix it. O I forgot when it happened I just gotten gas took a long start which is the fuel pressure sensor and evap canister on the manifold. Get to the rd go to pull out and a dick civic decides to speed up to show off so I boosted hard enough to spin the tires. When I let off to make my turn it idled down loud back fire and then no boost but no cel but found stored codes. I have not completely "boost leak" checked the car but I have gone over everything multiple times and found nothing and it doesn't sound like a boost leak. My mods k&n intake cat less dp and trifecta tune(also flashed back to stock to see if any change) thanks in advanced

Originally Posted by bamaboy22

U talking about the one I replaced already onto of the manifold