right, ive fitted a boost gauge (following instructions on this site) and a turbo timer (following instructions given with it) since doing this my car isnt idling right. its blipping between 600rpm and 950ish. any ideas? it ran fine beforehand. although while fitting the timer it did come up on the dash display - immobiliser fault - that seemed to stop the car boosting, it went limp as hell. was told to disconnect the battery for a bit so did that and car feels fine whilst flooring it but is dodgy on idle. plus if the gauge is to be believed im running 3psi at the most. any help would be much appreciated.