hi all i have a S2 rst it was a none runner but I have got it started and it runs nicely although really Rich until it gets to good running temp where if you turn it off and try to re start it it turns over but hesitates on acceleration and wont idle and sounds as though it is missing and also lacks power. Please help as this is driving me crazy
P.s
When i accelerate the Vacum Gauge goes down to poor but when i lift off it shoots up to decellerate this may sound dumb but i have never had this gauge before so i wouldnt no is this normal.
Many Thanks in advance.

 

im having a simalar problem but the vac gauge is reading correctly hth

 

Is the gauge a TIM one and does it have red,green, yellow on it ?

 

I would take it to a reputable tuner

Also sounds like you have the wrong guage fitted. Vacuum guages are for normally aspirated cars, and it is working correctly if when you come on boost it reads "poor" (Showing positive pressure in the manifold (Boost)) and when you back off it reads "decelerate".
Best thing to do is throw this guage in the bin and replace it with a boost guage

I doubt the poor running of the engine has anything to do with the wrong guage been fitted, although obviously someone who doesnt know what they are doing has fitted it, so it will be worth checking the connections...

Hope this helps a bit!