View Single Post
mooney265 mooney265 is offline
Tinkering Pays!!
mooney265's Avatar
Join Date: Sep 2008
Location: New Orleans
Posts: 1,365

I can have my car mimic your exact symptoms by simply raising my cold pressure in my WUR 0.5 bar. I know this, because I did it this past weekend...

E.g. - - > Right now, my car starts and idles perfectly when cold. My cold control pressure is 2.3 BAR. It starts there and slowly rises to 3.8 bar over about a 3 minute period.

However, if I was to raise my cold control pressure to 2.8 bar, I would experience the same problems you are having at initial startup... [the ole "put put to life" thing...]

The 0.5 bar decrease is all I need to go from terrible cold running [very lean and barely staying alive] to purring like a kitten... If you don't have an adjustable WUR and a set of CIS gauges, I'd get some...

Once you have them in hand, feel free to contact me on how to adjust.
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 11-12-2009, 06:53 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #15 (permalink)