Oroboros Posted August 13, 2012 Report Share Posted August 13, 2012 Hi guys, Drove the Esprit earlier today to work and all was fine, came home, had a tiny nap, and went out for a drive again. Start it up, all seems normal, except as I start driving, i notice the boost gauge is jumping around violently, not even giving gas, and its all over the place. I drove it for a while, and everything seems normal with the actual boost and delivery. Its just the damn needle making me paranoid. The needle is stuck all the way to the far right (Max), and sometimes dropping down and jolting about, especially on uphills around 2000-3000 rpm. Would appreciate any advice Cheers Oroboros Quote Link to comment Share on other sites More sharing options...
Vulcan Grey Posted August 13, 2012 Report Share Posted August 13, 2012 sounds like the electrical connection between the boost gauge transducer and the dash is loose... I would start at the boost gauge transducer under the right side arch, behind the right side fuel filler, tucked up in the body work. Quote Travis Vulcan Grey 89SE Link to comment Share on other sites More sharing options...
nickh Posted August 15, 2012 Report Share Posted August 15, 2012 Esprit S4? With a boost guage?? Quote Link to comment Share on other sites More sharing options...
rizla603104 Posted August 16, 2012 Report Share Posted August 16, 2012 I like boost gauges - but I don't appear to have one either. Have you got two oil gauges - 1 for pressure - 1 for temperature? Quote Link to comment Share on other sites More sharing options...
nickh Posted August 17, 2012 Report Share Posted August 17, 2012 Yes. Two oil guages are standard. Im aware that the earlier Esprits had a boost guage as standard, but thought they did away with it on the S4-unless it was different on the very first S4's? Quote Link to comment Share on other sites More sharing options...
Oroboros Posted August 18, 2012 Author Report Share Posted August 18, 2012 Cool, will start off there. Thamks for the advice. I have two oil gauges aswell, one for temp and one for pressure. Plus the boost gauge in the top middle of the dash. Mine is a US MY 95 S4 imported to europe. Might be why theres a difference in the layout. I know there are several small diffrences from the euro to the US market ones. Quote Link to comment Share on other sites More sharing options...
Alan Paterson Posted October 13, 2012 Report Share Posted October 13, 2012 If it turns out not to be the transducer, take a look at my thread regarding Boost gauge transducer replacement. You might find the last entry useful. Quote Link to comment Share on other sites More sharing options...
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