here WE go... I was reading the post abouth "Fuel trims, what do these #s mean? " and Since I have been Having issues with the same Subject I decited to get a Scanner Its a OTC Monitor 4000 enhancer.
Let me start By Giving the Most Info on My tahoe. 96 L31 Whipple supercharged 5psi boost axuliar injectors, Crower cam 00401LM AC delcos Plugs , I get the codes 1345 at start up almosst all the Time and P0134, headers Glow...Lean? jeez what Else...Let get to the Numbers..
Driving I get this.
HO2S B1 S1 208 moves to 190 mV
H02S B1 S3 933 moves to 924 mV
LONG FT B1 19% moves to 23%
FT CEL BK1 17
SHORT FT B1 50%
O2 XCNT B1 0
HO2S B2 S1 73 moves to837 mV
HO2S B2 S2 438 moves to 442 mV
LONG FT B2 2.33% goes Negative at WOT -14
FT CEL BK2 17
SHORT FT B2 goes minus -1.7 , 0.0, .78%
02 XCNT B2 2 goes to 7
MAF 10 g/s
A/F 14.7 :1
Ignition Voltage 12.7V
FP is 52-53psi Idle and at WOT 62-63psi
It has a Rugh iddle the rpms go up down Vac leak?
I have also replase both o2 sensors and the same problem persist same numbers and the AF indicator indicates lean then after a ride it goes to stoich but with the numbers im presentin here It does not Go to Full stoich just a cuple of led lights
Any input, please Help any suggestiong Will be consider