I know you all my have heard this time and time again but im no mechanic i just drive the thing !!!! My RS is supposed to be camed and chipped(the last owner told me this) it was boosting up to 15psi on my boost gauge but has now dropped to 12psi, it has(i think) a standard actuator on it as it doesnt look big enough for a -31, i took the pipe from the actuator to the anamel valve off at the anamel end but left it on at the actuator. i ran the car down the road and hit 20psi before i backed off, it did this with no problems, so is my car chipped or would it have done this on a standard ford ECU ???

Any help would be appreicated