Matt Posted March 20, 2005 Report Share Posted March 20, 2005 My Day has a 93 Eldorado with a 4.9L PFI engine just like what I have in my 93 Seville. I'm still looking for a "now intermitent" hesitation and rough idle problem on my Seville. Today I experimented with the MAP sensors on both cars. On the Eldorado wile the car is idleing if you un-plug the MAP sensor the engine slows down then comes back to idle speed. If you un-plug it again within a few seconds the engine shuts off. On my Seville if I do the same thing to the MAP sensor nothing happens at all. - - Did I stumble onto a bad MAP sensor on My Seville?? Could this be causing the problem I have been having ?? I have my fingers crossed... Matt Link to comment Share on other sites More sharing options...
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