jandb327 Posted July 6, 2011 Share Posted July 6, 2011 Hi All Have 1996 LS400 318,000 miles and counting awhile back engine would now start up. check engine light on ecode said low performing rbank cat. changed both because gaskit leak after new wires plugs think it's the fuel pump fuel/Air filter are new. One Tech said trans bad next said air flow needs clean,trans seems fine Thanks for any help. John Quote Link to comment Share on other sites More sharing options...
steve2006 Posted July 6, 2011 Share Posted July 6, 2011 1st question will it rev past 4000 when it is in park/neutral? 2nd question is the engine management light still on? Quote Link to comment Share on other sites More sharing options...
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