Q: Poor acceleration especially pulling load.
Starts no problem, idles good sound good. Compresions 130 psi all round cold and dry.New fuel pump just fitted, new plugs, cats had cores removed by mechanic only making it loud, mass air flow and trottle body cleaned by same mechanic.Slight miss fire at higher revs 3 to 4000 but no response on throttle about 25mm of pedal movement, ease off on pedal and changes down to third but no pulling power.Mechanic did say it may be fuel pressure reg but dont know.
My car has 190000 miles. disco 2 v8 4 ltr 1999 My car has an automatic transmission.
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