hi bought 95 220 sei auto it has following problem high idle when cold of 2000rpm ....when in park or neutral when driving or any gear drops to 14o0rpm.I noticed when warmed up then starting iot starts at 1500 rpm not 2000rpm also when warm idle speed in park is 1100 rpm ...so between cold and hot big difference ..new sparkplus new distribter cap roter timing belt set by timing light new thermostast radiator cap in and out radiator hoses ..sprayed for vacuum leaks cant pick up anything ..swopped complete throttle body off 93 220 that was running well no difference ..suggestions ect on engine and below in radiator perhaps if i switch on ac revs rise by 300rpm no codes except code 42 thats seperate post of mine under ecu and electronics