Ned Posted March 25, 2008 Share Posted March 25, 2008 Got a LS400 with 1UZ and auto box Used to pull straight past 80km/h in first but now splutters and fucks about at 60 Anyone got some sort of idea? took it to Kaspa and they suggested i'd look at the engine side of things first because they dont think it's the box. Took it to Lexus North Shore and they can do some diagnostics which could cost up to $300 so figured i'd try you brainiacs first Happend randomly from one day to the other, didnt graduately start doing it.. Anyone? Ned Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted March 25, 2008 Share Posted March 25, 2008 you can do your own diasnosits test on it. iv done it before with a 1uz with a light. cant remember the pins now but look on lexstreem.com Quote Link to comment Share on other sites More sharing options...
Dell'orto Posted March 26, 2008 Share Posted March 26, 2008 Fuel pump ECU might be crapping out, have heard it happen before. Quote Link to comment Share on other sites More sharing options...
AE25 Posted March 26, 2008 Share Posted March 26, 2008 mrt1trd has a diagnostics machine is it only when you rev it out or only in a certain gear? Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted March 27, 2008 Share Posted March 27, 2008 Fuel pump ECU might be crapping out, have heard it happen before. yes second that. they run low voltage at low engine power to the fuelpump. under load it goes up to 14v. go maby try powering the fuelpump up and check that Quote Link to comment Share on other sites More sharing options...
AE25 Posted March 27, 2008 Share Posted March 27, 2008 or blocked fuel filter Quote Link to comment Share on other sites More sharing options...
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