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Discussion Starter · #1 ·
im no skilled mechanic but it seems to me like there are issues here, like between the short fuel trims, sometimes the TP ... mabey even timing? this test is sitting running not driving, un fortunantly my code scanner screwed me and somehow lost my driving data so this all may be usless but whatever
the truck isnt mine, but i know it very very well, and can tell when its in a bad mood, it was a come and go problem 3 years ago, no power terrible milliadge. now its a consistant problem, the engine even sounds bad like it has no power... 120k i changed the IAT

new parts in the last 3 years
msd coil
TP sensor
IACV
plugs and wires twice, and new plugs 2 months ago
cap and rotor many times, last was 2 months ago
new timing chain, 8 months ago
new MAF last 8 months
IAT today

the last ime i drove it, it was just cuting on off on off on off on off/ and backfireing sometimes... my uncle since then changed the cap and rotor and claims the prob whent away, i however think it just "coverd up" the problem a bit, or helped it... or the trucks just in a better mood now and has nothing to do with his last caprotor change... idk, anyway i dont know how to read this so hopfully someone can chime in and help...

the truck does have an exhaust leak where the y meets the manifold, getting louder but the symptoms were here long before the exhaust leak...

thank you, adam
 

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Discussion Starter · #2 ·
FRAME 1

FUELSYS1 OL
FUELSYS2 OL
LOAD-PCT% 2.7
ECT F 194
SHRTFT1% 0.0
LONGFT1% 3.9
SHRTFT2% 0.0
LONGFT2% 9.4
MAP (PSI) 4.5
RPM 627
VSS MPH 0
SPARKADV DEGREES 22.0
IAT F -40
MAF lbs 0.01
TP % 0.0
O2SLOCB1S12--B2S12--
O2B1S1 V 0.090
SHRTFTB1S1% 0.0
O2B1S2 V 0.740
SHRTFTB1S2% N/A
O2B2S1 V 0.040
SHRTFTB2S1% 0.0
O2B2S2 V 0.000
SHRTFTB2S2% 99.2

FRAME 2

FUELSYS1 OL
FUELSYS2 OL
LOAD-PCT% 3.1
ECT F 194
SHRTFT1% 0.0
LONGFT1% 0.8
SHRTFT2% 0.0
LONGFT2% 9.4
MAP (PSI) 6.1
RPM 1030
VSS MPH 0
SPARKADV DEGREES 28.0
IAT F -40
MAF lbs 0.03
TP % 3.1
O2SLOCB1S12--B2S12--
O2B1S1 V .070
SHRTFTB1S1% 2.3
O2B1S2 V 0.170
SHRTFTB1S2% NA
O2B2S1 V 0.050
SHRTFTB2S1% 3.1
O2B2S2 V .005
SHRTFTB2S2% 99.2

FRAME 3

FUELSYS1 CL
FUELSYS2 CL
LOAD-PCT% 6.3
ECT F 194
SHRTFT1% 2.3
LONGFT1% 1.6
SHRTFT2% 6.3
LONGFT2% 10.2
MAP (PSI) 3.9
RPM 1394
VSS MPH 0
SPARKADV DEGREES 26.5
IAT F -40
MAF lbs 0.03
TP % 3.1
O2SLOCB1S12--B2S12--
O2B1S1 V 0.560
SHRTFTB1S1% 2.3
O2B1S2 V 0.195
SHRTFTB1S2% NA
O2B2S1 V 0.065
SHRTFTB2S1% 10.2
O2B2S2 V 0.005
SHRTFTB2S2% 99.2

FRAME 4

FUELSYS1 CL
FUELSYS2 CL
LOAD-PCT% 28.6
ECT F 194
SHRTFT1% 3.9
LONGFT1% 3.1
SHRTFT2% 13.3
LONGFT2% 9.4
MAP (PSI) 2.6
RPM 2169
VSS MPH 0
SPARKADV DEGREES 27.5
IAT F -40
MAF LBS 0.02
TP % 0.0
O2SLOCB1S12--B2S12--
O2B1S1 V 0.090
SHRTFTB1S1% 0.0
O2B1S2 V 0.175
SHRTFTB1S2% NA
O2B2S1 V 0.040
SHRTFTB2S1% 0.8
O2B2S2 V 0.015
SHRTFTB2S2% 99.2

FRAME 5

FUELSYS1 CL
FUELSYS2 CL
LOAD-PCT% 3.1
ECT F 194
SHRTFT1% -2.3
LONGFT1% 3.9
SHRTFT2% 3.1
LONGFT2% 9.4
MAP (PSI) 4.2
RPM 617
VSS MPH 0
SPARKADV DEGREES 23.0
IAT F -40
MAF lbs 0.01
TP % 0.0
O2SLOCB1S12--B2S12--
O2B1S1 V 0.780
SHRTFTB1S1% -6.3
O2B1S2 V 0.800
SHRTFTB1S2% NA
O2B2S1 V 0.065
SHRTFTB2S1% 7.0
O2B2S2 V 0.010
SHRTFTB2S2% 99.2
 

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Discussion Starter · #3 ·
FRAME 6

FUELSYS1 CL
FUELSYS2 CL
LOAD-PCT% 2.7
ECT F 194
SHRTFT1% -6.3
LONGFT1% 3.1
SHRTFT2% 10.2
LONGFT2% 10.9
MAP (PSI) 4.5
RPM 653
VSS MPH 0
SPARKADV DEGREES 21.0
IAT F -40
MAF lbs 0.01
TP % 0.0
O2SLOCB1S12--B2S12--
O2B1S1 V 0.035
SHRTFTB1S1% -4.7
O2B1S2 V 0.750
SHRTFTB1S2% NA
O2B2S1 V 0.055
SHRTFTB2S1% 13.3
O2B2S2 V 0.010
SHRTFTB2S2% 99.2

FRAME 7

FUELSYS1 CL
FUELSYS2 CL
LOAD-PCT% 2.7
ECT F 194
SHRTFT1% -2.3
LONGFT1% 3.1
SHRTFT2% 16.4
LONGFT2% 11.7
MAP (PSI) 4.4
RPM 641
VSS MPH 0
SPARKADV DEGREES 21.0
IAT F -40
MAF 0.01
TP % 0.0
O2SLOCB1S12--B2S12--
O2B1S1 V .050
SHRTFTB1S1% 0.0
O2B1S2 V 0.135
SHRTFTB1S2% NA
O2B2S1 V .060
SHRTFTB2S1% 20.3
O2B2S2 V 0.010
SHRTFTB2S2% 99.2

FRAME 8

FUELSYS1 CL
FUELSYS2 CL
LOAD-PCT% 2.7
ECT F 194
SHRTFT1% 1.6
LONGFT1% 3.1
SHRTFT2% 23.2
LONGFT2% 13.3
MAP (PSI) 4.4
RPM 632
VSS MPH 0
SPARKADV DEGREES 22.0
IAT F -40
MAF 0.01
TP % 0.0
O2SLOCB1S12--B2S12--
O2B1S1 V 0.785
SHRTFTB1S1% 2.3
O2B1S2 V .130
SHRTFTB1S2% NA
O2B2S1 V 0.065
SHRTFTB2S1% 27.3
O2B2S2 V 0.010
SHRTFTB2S2% 99.2

FRAME 9

FUELSYS1 CL
FUELSYS2 CL
LOAD-PCT% 2.7
ECT F 194
SHRTFT1% 3.1
LONGFT1% 3.1
SHRTFT2% 30.5
LONGFT2% 14.6
MAP (PSI) 4.4
RPM 646
VSS MPH 0
SPARKADV DEGREES 21.5
IAT F -40
MAF 0.01
TP % 0.0
O2SLOCB1S12--B2S12--
O2B1S1 V 0.075
SHRTFTB1S1% 3.1
O2B1S2 V 0.140
SHRTFTB1S2% NA
O2B2S1 V 0.060
SHRTFTB2S1% 34.4
O2B2S2 V 0.015
SHRTFTB2S2% 99.2

FRAME 10

FUELSYS1 CL
FUELSYS2 CL
LOAD-PCT% 2.7
ECT F 194
SHRTFT1% 1.6
LONGFT1% 3.9
SHRTFT2% 37.5
LONGFT2% 15.6
MAP (PSI) 4.5
RPM 622
VSS MPH 0
SPARKADV DEGREES 24.0
IAT F -40
MAF 0.01
TP % 0.0
O2SLOCB1S12--B2S12--
O2B1S1 V 0.770
SHRTFTB1S1% 1.6
O2B1S2 V 0.145
SHRTFTB1S2% NA
O2B2S1 V 0.100
SHRTFTB2S1% 40.6
O2B2S2 V 0.025
SHRTFTB2S2% 99.2
 

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Discussion Starter · #4 ·
Frame 11

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 1.6
longft1% 3.9
shrtft2% 42.2
longft2% 16.4
map (psi) 4.6
rpm 624
vss mph 0
sparkadv degrees 23.5
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.505
shrtftb1s1% 1.6
o2b1s2 v 0.150
shrtftb1s2% na
o2b2s1 v 0.775
shrtftb2s1% 43.8
o2b2s2 v 0.030
shrtftb2s2% 99.2

frame 12

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 1.6
longft1% 3.9
shrtft2% 42.2
longft2% 16.4
map (psi) 4.6
rpm 629
vss mph 0
sparkadv degrees 23.0
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.755
shrtftb1s1% 2.3
o2b1s2 v 0.150
shrtftb1s2% na
o2b2s1 v 0.745
shrtftb2s1% 42.2
o2b2s2 v 0.030
shrtftb2s2% 99.2

frame 13

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 0.8
longft1% 3.9
shrtft2% 42.2
longft2% 16.0
map (psi) 4.6
rpm 625
vss mph 0
sparkadv degrees 24.5
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.560
shrtftb1s1% 2.3
o2b1s2 v 0.135
shrtftb1s2% na
o2b2s1 v 0.705
shrtftb2s1% 43.8
o2b2s2 v 0.030
shrtftb2s2% 99.2

frame 14

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 2.3
longft1% 3.9
shrtft2% 42.2
longft2% 16.0
map (psi) 4.6
rpm 625
vss mph 0
sparkadv degrees 23.0
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.760
shrtftb1s1% 2.3
o2b1s2 v 0.145
shrtftb1s2% na
o2b2s1 v 0.760
shrtftb2s1% 43.8
o2b2s2 v 0.035
shrtftb2s2% 99.2

frame 15

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 0.8
longft1% 3.9
shrtft2% 43.0
longft2% 18.8
map (psi) 4.6
rpm 626
vss mph o
sparkadv degrees 23.5
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.125
shrtftb1s1% 2.3
o2b1s2 v 0.155
shrtftb1s2% na
o2b2s1 v 0.895
shrtftb2s1% 40.6
o2b2s2 v 0.030
shrtftb2s2% 99.2
 

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Discussion Starter · #5 ·
Frame 16

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 0.8
longft1% 3.9
shrtft2% 39.1
longft2% 18.8
map (psi) 4.6
rpm 633
vss mph 0
sparkadv degrees 22.5
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.135
shrtftb1s1% 2.3
o2b1s2 v 0.135
shrtftb1s2% na
o2b2s1 v 0.240
shrtftb2s1% 37.5
o2b2s2 v 0.030
shrtftb2s2% 99.2

frame 17

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 0.8
longft1% 3.9
shrtft2% 39.1
longft2% 19.5
map (psi) 4.6
rpm 622
vss mph 0
sparkadv degrees 24.0
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.105
shrtftb1s1% 0.8
o2b1s2 v 0.140
shrtftb1s2% na
o2b2s1 v 0.620
shrtftb2s1% 39.1
o2b2s2 v 0.030
shrtftb2s2% 99.2

frame 18

fuelsys1 cl
fuelsys2 cl
load-pct% 12.9
ect f 194
shrtft1% .08
longft1% 6.3
shrtft2% 36.7
longft2% 9.4
map (psi) 5.7
rpm 2199
vss mph 0
sparkadv degrees 34.0
iat f -40
maf 0.07
tp % 16.5
o2slocb1s12--b2s12--
o2b1s1 v 0.210
shrtftb1s1% 3.9
o2b1s2 v 0.060
shrtftb1s2% na
o2b2s1 v 1.020
shrtftb2s1% 33.6
o2b2s2 v 0.315
shrtftb2s2% 99.2

frame 19

fuelsys1 cl
fuelsys2 cl
load-pct% 15.7
ect f 194
shrtft1% 4.7
longft1% 3.1
shrtft2% 31.3
longft2% 9.4
map (psi) 4.2
rpm 2874
vss mph 0
sparkadv degrees 33.5
iat f -40
maf 0.07
tp % 17.6
o2slocb1s12--b2s12--
o2b1s1 v 0.725
shrtftb1s1% 2.3
o2b1s2 v 0.460
shrtftb1s2% na
o2b2s1 v 0.945
shrtftb2s1% 27.3
o2b2s2 v 0.330
shrtftb2s2% 99.2

frame 20

fuelsys1 cl
fuelsys2 cl
load-pct% 15.7
ect f 192
shrtft1% 1.6
longft1% 3.1
shrtft2% 25.0
longft2% 9.4
map (psi) 5.7
rpm 3309
vss mph 0
sparkadv degrees 30.0
iat f -40
maf 0.02
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.080
shrtftb1s1% 0.0
o2b1s2 v 0.835
shrtftb1s2% na
o2b2s1 v 0.040
shrtftb2s1% 0.0
o2b2s2 v 0.065
shrtftb2s2% 99.2
 

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Discussion Starter · #6 ·
Frame 21

fuelsys1 cl
fuelsys2 cl
load-pct% 59.2
ect f 192
shrtft1% 0.0
longft1% 7.0
shrtft2% 0.0
longft2% 15.6
map (psi) 2.6
rpm 4615
vss mph 0
sparkadv degrees 29.0
iat f -40
maf 0.02
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.670
shrtftb1s1% 0.0
o2b1s2 v 0.760
shrtftb1s2% na
o2b2s1 v 0.040
shrtftb2s1% 0.0
o2b2s2 v 0.050
shrtftb2s2% 99.2

frame 22

fuelsys1 cl
fuelsys2 cl
load-pct% 3.1
ect f 192
shrtft1% 0.0
longft1% 3.9
shrtft2% 0.0
longft2% 19.5
map (psi) 2.8
rpm 853
vss mph 0
sparkadv degrees 16.5
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.840
shrtftb1s1% -1.6
o2b1s2 v 0.750
shrtftb1s2% na
o2b2s1 v 0.055
shrtftb2s1% 1.6
o2b2s2 v 0.025
shrtftb2s2% 99.2

frame 23

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 192
shrtft1% -3.1
longft1% 3.9
shrtft2% 4.7
longft2% 9.4
map (psi) 7.4
rpm 930
vss mph 0
sparkadv degrees 28.0
iat f -40
maf 0.06
tp % 14.5
o2slocb1s12--b2s12--
o2b1s1 v 0.025
shrtftb1s1% 2.3
o2b1s2 v 0.120
shrtftb1s2% na
o2b2s1 v 0.265
shrtftb2s1% 8.6
o2b2s2 v 0.045
shrtftb2s2% 99.2

frame 24

fuelsys1 cl
fuelsys2 cl
load-pct% 5.1
ect f 192
shrtft1% 0.0
longft1% 3.9
shrtft2% 0.0
longft2% 19.5
map (psi) 3.0
rpm 1260
vss mph 0
sparkadv degrees 25.0
iat f -40
maf 0.02
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.805
shrtftb1s1% 0.8
o2b1s2 v 0.170
shrtftb1s2% na
o2b2s1 v 0.045
shrtftb2s1% 3.1
o2b2s2 v 0.015
shrtftb2s2% 99.2

frame 25

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 192
shrtft1% -.08
longft1% 3.9
shrtft2% 6.3
longft2% 20.3
map (psi) 4.4
rpm 656
vss mph 0
sparkadv degrees 20.0
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.335
shrtftb1s1% 1.6
o2b1s2 v 0.250
shrtftb1s2% na
o2b2s1 v 0.065
shrtftb2s1% 9.4
o2b2s2 v 0.020
shrtftb2s2% 99.2
 

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Discussion Starter · #7 ·
Frame 26

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 192
shrtft1% 1.6
longft1% 3.9
shrtft2% 12.5
longft2% 21.9
map (psi) 4.4
rpm 632
vss mph 0
sparkadv degrees 21.0
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.795
shrtftb1s1% 1.6
o2b1s2 v 0.300
shrtftb1s2% na
o2b2s1 v 0.065
shrtftb2s1% 16.4
o2b2s2 v 0.020
shrtftb2s2% 99.2

frame 27

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 0.8
longft1% 3.9
shrtft2% 19.5
longft2% 23.4
map (psi) 4.4
rpm 636
vss mph 0
sparkadv degrees 21.5
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.475
shrtftb1s1% 2.3
o2b1s2 v 0.345
shrtftb1s2% na
o2b2s1 v 0.065
shrtftb2s1% 23.4
o2b2s2 v 0.025
shrtftb2s2% 99.2

frame 28

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 2.3
longft1% 3.9
shrtft2% 26.6
longft2% 24.2
map (psi) 4.5
rpm 616
vss mph 0
sparkadv degrees 23.5
iat f -40
maf 0.01
tp % 00.0
o2slocb1s12--b2s12--
o2b1s1 v 0.050
shrtftb1s1% 2.3
o2b1s2 v 0.375
shrtftb1s2% na
o2b2s1 v 0.655
shrtftb2s1% 29.7
o2b2s2 v 0.030
shrtftb2s2% 99.2

frame 29

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 2.3
longft1% 3.9
shrtft2% 31.3
longft2% 25.5
map (psi) 4.5
rpm 612
vss mph 0
sparkadv degrees 23.0
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.145
shrtftb1s1% 2.3
o2b1s2 v 0.395
shrtftb1s2% na
o2b2s1 v 0.865
shrtftb2s1% 32.8
o2b2s2 v 0.030
shrtftb2s2% 99.2

frame 30

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 2.3
longft1% 3.9
shrtft2% 34.4
longft2% 25.0
map (psi) 4.6
rpm 617
vss mph0
sparkadv degrees 25.0
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.085
shrtftb1s1% 0.8
o2b1s2 v 0.415
shrtftb1s2% na
o2b2s1 v 0.825
shrtftb2s1% 34.4
o2b2s2 v 0.030
shrtftb2s2% 99.2
 

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8 Posts
Discussion Starter · #8 ·
Frame 31

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 0.8
longft1% 3.9
shrtft2% 33.6
longft2% 25.0
map (psi) 4.6
rpm 608
vss mph 0
sparkadv degrees 24.0
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.720
shrtftb1s1% 0.8
o2b1s2 v 0.430
shrtftb1s2% na
o2b2s1 v 0.855
shrtftb2s1% 31.3
o2b2s2 v 0.035
shrtftb2s2% 99.2

frame 32

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 2.3
longft1% 3.9
shrtft2% 31.3
longft2% 25.0
map (psi) 4.5
rpm 625
vss mph o
sparkadv degrees 23.0
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.390
shrtftb1s1% 2.3
o2b1s2 v 0.440
shrtftb1s2% na
o2b2s1 v 0.500
shrtftb2s1% 32.6
o2b2s2 v 0.030
shrtftb2s2%99.2

frame 33

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 2.3
longft1% 3.9
shrtft2% 32.0
longft2% 25.0
map (psi) 4.5
rpm 628
vss mph 0
sparkadv degrees 23.5
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.790
shrtftb1s1% 2.3
o2b1s2 v 0.450
shrtftb1s2% na
o2b2s1 v 0.660
shrtftb2s1% 33.6
o2b2s2 v 0.035
shrtftb2s2% 99.2

frame 34

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 2.3
longft1% 3.9
shrtft2% 33.6
longft2% 25.0
map (psi) 4.5
rpm 626
vss mph 0
sparkadv degrees 23.5
iat f -40
maf 0.01
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.625
shrtftb1s1% 0.8
o2b1s2 v 0.460
shrtftb1s2% na
o2b2s1 v 0.360
shrtftb2s1% 32.8
o2b2s2 v 0.030
shrtftb2s2% 99.2

frame 35

fuelsys1 cl
fuelsys2 cl
load-pct% 2.7
ect f 194
shrtft1% 0.8
longft1% 3.9
shrtft2% 32.0
longft2% 25.0
map (psi) 4.5
rpm 635
vss mph 0
sparkadv degrees 23.5
iat f -40
tp % 0.0
o2slocb1s12--b2s12--
o2b1s1 v 0.460
shrtftb1s1% 2.3
o2b1s2 v .460
shrtftb1s2% na
o2b2s1 v 0.845
shrtftb2s1% 32.8
o2b2s2 v 0.030
shrtftb2s2% 99.2
 
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