right then, I bought an efi mk4 escort cab with a running problem, basically when cold it revs as normal but when warm wont rev above 2500 revs, today I've replaced the map sensor, tps, iscv & charge cooler control thingy i've even tried a new ecu but to no avail, anyone got any ideas????

as an after thought does anyone know how test the co pot?

thanks in advance.Daz.