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Turbofrog
 
smurfbus's Avatar
 
Join Date: Aug 2009
Location: Europe
Posts: 1,376
I was a CIS noob a year ago. Had similar problems and bought the CIS pressure tester and installed WB AFR and followed the manual for checking different flows and pressures. In the end I pretty much understand the basics of the CIS system just by following the instructions I was given last year. I had wrong fuel head on my car and the symptom was too lean after 5000rpm.

Tell us your wur pressure readings: system (valve closed), cold (plug disconnected) and warm (plug connected).
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79 930: HX40S#16, MS3pro+ID1000+044+E85, Ignition: 123/TUNE/MSD6A, True split BB, 2*turbosmart38

Last edited by smurfbus; 09-12-2011 at 10:15 PM..
Old 09-12-2011, 10:10 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #21 (permalink)
Tinkering Pays!!
 
mooney265's Avatar
 
Join Date: Sep 2008
Location: New Orleans
Posts: 1,365
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Quote:
Originally Posted by smurfbus View Post
Tell us your wur pressure readings: system (valve closed), cold (plug disconnected) and warm (plug connected).
yes, I believe this is where you need to "re-start" the diagnosis...
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LIVN80S - - Red '79 Porsche 930 Steel Slant Nose Conversion [in 1987] w. 46k miles 3.3L; 964 Cams; K27HF @ 1.0 BAR, with Garrettson Intercooler; Rarly Zork; CIS Flowtech Fuel Head & BL-WUR.
Old 09-13-2011, 03:03 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #22 (permalink)
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