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1979 930 Rough Idle "dieseling" and dies
Completely original, CIS, etc.
I was hoping that you guys could give me a good place to start... I have attached a link to my Youtube where you can hear it idling. I have replaced the two gaskets in the air recirculating body at the piston as I thought I had a vacuum leak. The overboost sender has been bypassed for testing...no change. When attempting to idle it is very rich... I have read through the "my car won't start" sticky which is quite the daunting list. If anyone has any ideas based on how it sounds it would be great...or should I just work the list in no particular order? https://youtube.com/shorts/W9cEqV8W_uA? 
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04-06-2023, 06:32 PM
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Join Date: Dec 2006
Posts: 69
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Sounds like it's running too rich. Turn back adjustment screw, and or advance distributor to get a hotter spark.
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04-23-2023, 10:02 AM
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From the audio I would give it some air at the throttle body and get the rpms up to 900-1000 and let it warm up. Have you tested your cold and warm control pressure, if not get a set of gauges and do some testing.
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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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04-24-2023, 02:47 AM
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Join Date: Nov 2007
Location: New Jersey
Posts: 3,112
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If you can get your hands on a pair of fuel relays, I would start there. Cheap and easy to do.
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Rey....77 930 "the Mistress" |
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04-28-2023, 11:15 AM
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Hot Euro (from PO)
