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CIS does have a FPR and a(more)
Posted by KeithR (more from KeithR) on Fri, 5 Oct 2001 16:19:51
In Reply to: CIS, 16.2 mpg, no FPR or RRFPR, Kevin K
[Profile/Gallery]
, Fri, 5 Oct 2001 15:34:43
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Control pressure regulator as well. The main pressure is adjusted with shims and the control pressure regulator is supposed to be replaced if out of tolerance. The main seemed to get lower with time, possible due to the spring weakening. The control regulator is not supposed to be adjustable, but I had pretty good luck with a hammer and punch (got this from a service manager) and tapping the center in or out to get the hot and cold pressure right on. Take it apart and see how it works and you may be ablew to figure out how to adjust it. Do you have a lambda (o2 sensor) equipped CIS? If not a conversion would probably help. The book by Charles O. Probst on Bosch fuel injection and management (published by robert bentley publishers) helped me understand the whole CIS concept. Not living near a SAAB dealer, I used to take my injectors to the VW dealer for cleaning and testing, He charged me $10.00 each, good or bad. I had spares was lucky cause I had 2 that were bad.
posted by 209.164.22...
Posts in this Thread:
- Fuel economy/fuel pressure regulator, Thorir Jonsson, Fri, 5 Oct 2001 12:15:12
- CIS, 16.2 mpg, no FPR or RRFPR, Kevin K
, Fri, 5 Oct 2001 15:34:43 - Re: Fuel economy/fuel pressure regulator, johnK, Fri, 5 Oct 2001 13:36:46
- Re: Fuel economy/fuel pressure regulator, Bill U, Fri, 5 Oct 2001 12:43:54
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