Originally Posted by heyzee107

any one out there able to shed a little light on a problem i have with my 2003 tdci 1.8 focus...it failed to start a couple of months ago fit another pump symptoms still the same .got the injectors checked and they were shot .got them reconditioned fit them and car fired up streight away.drove car and it cut out.re-started no problem,runs ok.once left and re started it runs ok then goes lumpy and struggles to rev in lower rev band then will cut out ?????but will re start and be ok...changed the meatering valve in the pump as someone said it could be that and its still the same...its bringing up error code p0423...has anyone encountered this before and what could it be?????any advice would be greatful