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Let me tell you a story about a similar problem I ran into several years ago. I bought this Turbo Porsche. It seemed to run really well (fast) but was also very rich. I knew my way around cars but had never worked on one of these. My first attempt at checking control pressures made me and everyone on here think I was doing it wrong. My first test showed 5.3 bar cold and warm, everyone said I was doing something wrong because it wouldn't run like that. I took my wur apart and cleaned it finding the input screen clogged. I cleaned my injectors and ran all sorts of fuel flow tests. My Idle mixture screw was turned all the way in and seized, took a few days of soaking to free it up. I still had problems so I pulled the System pressure regulator from the fuel head and found the valve missing. (sent you a pic in an earlier post). I replaced it but couldn't find a spring so I had to resize the one I had. After this my pressures came into line and I made progress. I had the wur rebuilt and modified, added air fuel monitors and permanent control pressure gauges and she has run pretty well for the last few years. Many thanks to all of these guys with endless suggestions to help me figure this out.
Good Luck!
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Steve
1981 SC Steel Widebody Outlaw in Pacific Blue and Artic White, 930/51 to 3.2l, K27 7006 Turbo, P&P Twin Plug heads, Twinfire Ignition, BLwur, Ruf Intercooler, Powerhaus headers, Zork, CIS Euro FD, 009 injectors, DOD, DP Lid, 044 pump, 930 4 sp LSD, Mocal 44 w/fan, LM2, Brembo, Retroair, Euromeisters.
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