John Hoegberg Posted January 26, 2008 Report Share Posted January 26, 2008 I have a 2.1 L turbo 4 cyl in a.... citroen ...evrything runs great pulls like a train under boost but at high vacuum and minute throttle openings (going down hill) the car surges any ideas on this? i've made sure tps is set up, tried rich/lean settings, advance/retard timing, messedwith the overrun vac value and to no avail. Quote Link to comment Share on other sites More sharing options...
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