Fun with OTC 4000, and 2 questions...

[OneSS2NV at aol.com]

Hello all,
   I borrowed an OTC 4000 scan-tool from work the other day, and finally got 
to check some readings out on my car.  Most of the values are looking really 
well (at least what I can figure from reading the papers and stuff off the 
DIY site).

   Here's the specs on the combination...'87 auto 305 TPI F-body MAF wiring 
harness (stock chip), motor has Crane 2031 roller cam, roller rockers, and 
World Products S/R Torquer heads with 1.94/1.50 valves. Base timing is set to 
around 9*, so with the computer hooked up the OTC shows 20* at idle in drive 
(600 rpm).  

   My O2 volts were .14-.73 while cruising
   My O2 crosscounts were 0-4
   IAC was 35 in Park, 65 @ 34 mph in 3rd gear (automatic)
   MAF was showing 8 g/s at cruise, up to 163 g/s @ WOT
   INJ pulsewidth was 8.5 @ WOT
   INT value stayed at 128 on the entire trip 

Now for question #1...the BLM # was fluctuating between 143-158, so this 
means that the motor is running a little lean, and the computer is 
compensating?  If so, would an adjustable fuel pressure regulator fix this 
last bit of the puzzle?  Or is an AFPR only helpful at WOT?

Here's question #2...my TPS volts at idle are .56 and swings to around 3.7 or 
so at WOT.  Do I  need to see over 4 volts at WOT for the computer to realize 
its at WOT?  I'm using an F-body throttle cable and TV cable in my 
application, so the geometry should be the same as stock.

      Thanks for any input,
         Steve Ragusa
          North Jersey
      '85 TPI Monte SS - an F-body disguised as a G-body 
See it @ http://www.angelfire.com/nj/Driven85SSDirectory/HeartTransplant.html
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