car runs ok, tad flat but it is non-turbo,at light throttle car jerks and at 2300rpm stationary blue smokes,ok here goes i have checked valve timing , had egr valve out cleaned and checked operation,removed injectors and checked for any internal leaks,measured resistances,checked fuel pressure, found fluctuating readings around 2300 rpm,replaced pump,this is now smoother, found map sensor showing vaccum readings at 2300 rpm and throttle plate closed ???, so if i disconnect airmass/egr actuator or throttle unit, throttle defaults to fully open and car and smoke problems are ok,forgot to say i have tried a new airmass and checked exhaust for blockage,have i missed something,is there a software update ??
had loads of time with this now and have lost the plot help.thanks for reading any comments welcomed.