What should the fule psi be in this car? At idle it's about 9 Bar. it has the dule pumps and one is making a noise. I think this is it becasue the fulctuation from 8.5 to 9 bar is rapid and feels like it's with the stumble. In what I have it says 4 bar is about right but I dont know if that is for the dule pump system. Any ideas? I bet it's going to be the pump but I have put $200 worth of parts it did not need on it. I hate to hit him wiht a $200 pump also. But one is making a bad noise.

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Spookeay Bird.
1985 190
1972 280 SE
1987 190