well had the car in to uncle arnolds today for warrenty work . said they wenrt fixing it cause my upper boost hoses and tip dv ect..... so am back to were i started. hears my prob while driving car seems not the have power it once had then soon as its goes past boost it judders real fast then theres no boost so while doing this my boost gauge just drops from like 12 psi to -20 odd . bi that time av took my foot of the accelarator. and the engine M lite flashes could this be a prob with my map . or n75 valve. or to do some were with fueling. its only really happend since i put tip and upper boost hoses on can any 1 help or no why this is doing this thanks
