TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

o2 and blms

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Old Feb 7, 2003 | 12:51 PM
  #1  
TKD89RS's Avatar
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Joined: Nov 2001
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From: Bay Area, Ca
Car: 1995
Engine: 5.7
Transmission: T-56
o2 and blms

i used the tuning method from this site for the fuel pressure. put a voltmeter to the o2 and when at WOT should be between .8 and .9. mine was just over .9 but my scanner says my blms where 130-132. doesn't that mean im lean and its adding fuel. so should i raise my fuel pressure a bit.

im running a LO5 357, 55 injectors, 9° of timing and i think fuel pressure was at like 13.
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Old Feb 7, 2003 | 03:23 PM
  #2  
dimented24x7's Avatar
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
hmmm.. funny it said the blms where changing. The computer should go into power enrich and the blms should lock at 128 and from there, it should follow the tables for fuel. Are the throttle blades opening fully and is the tps showing 95+ percent WOT when you push the pedal to the floor? If not, then the computer still thinks th engine is at partial throttle and its trying to meter the fuel.
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