Hi there 89 760 v6 b280F started running ruff , when it first happened idle was bad, no power hesitation, it seem to run ok when on highway 80-100ks but still ruff.Replaced fuel filter and checked injectors pressure etc,cap,rotor ,leads and spark plugs also replaced, this helped as they needed doing. The car starts first go idles up for a couple of seconds perfect then seems to miss ,it idles at 700 to 750 and on take off it bogs down and hesitates like it will stall until i get to about 2000 to 2500 RPM then it seems to go ok on the highway 100ks at 2000RPM or so. Also when taking off on a hill really bad no power. I checked for fault codes none are showing ,fuel economy is fine no smoke , it does run a little lean . Sorry for such a long message I'm just hoping someone out there on brickboard can help me , point me in the right direction. Thanks all the best ,Grego1 from Australia