Hi thanks for you reply. Could this mean that some diet has got through and slightly blocked something. Would you recommend a inline fuel filter?

Hi I have a defender 90 1988, with a3.9 v8 efi possible from a disco but not sure im have some problems after changing oil. its now very hestitant and a bit slugess I cleaned the maf today which helped but still not sorted. I was thinkinh of changing the fuel filter but i cannot find...