Idle richness with 7747.

[JTesta1966 at aol.com]

In a message dated 3/10/00 1:45:06 AM Eastern Standard Time, kereyn at gte.net 
writes:

<< When I was running the closed loop enabled bin my BLMs where around 108, at
 high vacuum and go leaner as the vacuum dropped. This seemed consistent with
 the different cam and headers/exhaust. I have been working the VE table with
 good success across the board, but at startup until closed loop kicked in I
 get the 850mv. I've been usi >>

A 108 BLM doesnt indicate lean, it indicates RICH, 108 means fuel is being 
subtracted. What are you using for injectors? Do you have the constant right?

Yo have 12psi FP?? This must then be a TBI setup, which I belive runs on 9ish 
PSI, but 12 wont make it THAT rich. A vacuum leak would yield higher than 128 
BLM's and low IAC's.

Have you tried thowing a stock chip in it just to see if it idles which would 
indicate a cal mistake and not a mechanical problem?

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jim Testa                                         TType86 on #BuickGN
jtesta1966 at aol.com                               buick.fiendish.net:6667
ASE Master Technician            NJ Lic. Motor Vehicle Inspector
L1 Adv Eng Perf Certified     NJ Licensed Emissions repair Tech
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