danmac Posted September 14, 2009 Share Posted September 14, 2009 I have a 1993 Ls 400 car sometimes sputters while driving or at stop light. Does not happen all the time and when I punch it it takes off like it should and then when I let off the gas or at a stop light starts to sputter again. Can some please help with advice. Thanks Dan Quote Link to comment Share on other sites More sharing options...
curiousB Posted September 14, 2009 Share Posted September 14, 2009 I have a 1993 Ls 400 car sometimes sputters while driving or at stop light. Does not happen all the time and when I punch it it takes off like it should and then when I let off the gas or at a stop light starts to sputter again. Can some please help with advice. Thanks Dan Dirty throttle body and maybe dirty or sticky IACV. Clean them both first and its 98% likely to fix the problem. Quote Link to comment Share on other sites More sharing options...
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