hey all not bin on here for a while got a teeny problem with a 88 mfi escort, its had a misfire fault for ages and finally managed to sort it but the ppm is still to high ive setup the co and fuel pressure but still in 4 digits, what psi should the fuel pressure be on idle (850/900) rpm, and also it wont start with a d/v on it so any1 think the vacume could be faulty/ perrished pipe