Hiya maye you have been recommended as knowing everything about scoobys so would greatly appreciate some advice. Ive got a MY93 WRX when i drive it it will boost at about 15psi but sometimes it cuts to 7psi for no reason it runs starts and drives fine no mods except a cone filter but it was doing this before i fitted the filter. Any suggestions would be appreciated as it is beginning to annoy me and also ive tryed cleaning the boost solenoid with brake cleaner that was a suggestion from someone but to no avail thanxs for that if you want to email me it is subarudriver@stephenson1981.fsbusiness.co.uk