Setting up my TBI

**1great40** · 04-06-2013

Thanks for reviewing the data. I guess i could put the 6 cylinder prom back in and see what happens. I have the 8 cylinder one in there because that's what painless specified in their manual. Also, since I didn't post every frame that the scanner picked up, I reviewed stuff and noticed that in some frames, the o2 sensor says "rich" with a voltage of about 800 mv and then in another frame, I have a similar voltage but the sensor reads "lean" . should these two parameters correlate? what is the crossover point (voltage) where the sensor goes from rich to lean? not that this might mean anything, I'm just learning. And one more dumb question... If the data looks good why then will theis engine not idle below 1000 rpm and why does it run so rough. I'm reading 15 inches of vacuum at 1000 rpm...it's on the low side but probably OK since the throttle/iac is admitting so much air... I'm stumped

And what does 3rd gear sw "ON" mean... The one time i tried to drive this thing it wouldn't shift out of first and I forgot to mention that all the data i posted was taken with the VSS unplugged.

**EagleMark** · 04-06-2013

If the Painless manual told you to run an 8 cylinder chip in a 6 cylinder then.... well I don't know, I'm baffled?

O2 sensor voltage is constantly switching past the mid point, in this case .451 volts. Yes it is supposed to switch rich/lean.

Your IAC was in the 70's which is to high, probably a worn or rebuilt throttle body and needs the throttle blade/Min Air Adjustment done.

If the data looks good why then will theis engine not idle below 1000 rpm and why does it run so rough. I'm reading 15 inches of vacuum at 1000 rpm...

My first guess would be it has an 8 cylinder chip running a 6 cylinder?

And what does 3rd gear sw "ON" mean... The one time i tried to drive this thing it wouldn't shift out of first and I forgot to mention that all the data i posted was taken with the VSS unplugged.

Not sure what 3rd gear switch is? Mine does not have that. If your VSS was unplugged it should have set an error code? Why it won't shift out of first has nothing to do with the ECM, it has no control of transmission except for TCC lockup which needs VSS. Have you adjusted the 700R4 transmission TV cable properly?

**1great40** · 04-13-2013

I'm learning a lot of stuff: The VSS in my TH700R4 will notwork with the ECM unless it is used with the speed buffer from the donor truck. It was causing the scanner to report over 200 mph while going up my driveway and the TCC would lock the minute the truck was in motion. Then the VSS was disconnected and now the TCC stays off. I ordered a Dakota Digital SGI-5 Universal signal interface to correct this problem.

While I was fooling around under the hood I noticed that the throttle shaft had lots of play in it. I'm thinking that maybe when I was removing the throttle lever from the donor TBI to install on a better one, I got my "recipients" mixed up and built up the wrong throttle body. Anyway, I found a good one in my junk and cleaned it up.

I assembled the "new" throttle body today and when I installed it, that engine would idle so slow you could hear the individual injector clicks! I set the minimum air and idle speed according to the GM procedure and since this is an OLD (1989) pre-Vortec, pre-balance shaft engine, I had to find a sweet spot where the idle was as smooth as it was gonna get without just plain running it too fast. I know there weren't the smoothest idling engines in the world but I think it doesn't make much difference when the truck is parked at a cruise night :). I still need to put the scanner back on there and look at my IAC count but I'm confident that it is in the correct range now.
Once I get the SGI-5 set up, I should be able to reconnect the VSS and not have the scanner tell me I'm doing 200 MPH crawling up my driveway and the instant TCC lockup should go away too. Then I need to get it to the guy who did the transmission to see why it wont shift correctly despite having set the TV cable according to the GM procedure. Thanks again to all who helped!

**1great40** · 04-17-2013

More data was taken with the Actron because it seemed to me that the engine was idling fast again. The data is below but the long and short of it seems that even though the minimum air adjustment was set to 450 +/- RPM with the transmission in drive (this is from my Alldata online manual) once everything is re- connected, the engine runs at 1000 RPM and my IAC numbers are still in the 70-80 range. I'm not understanding something here... The minimum air setting puts the engine at 450 RPM in drive, Then the IAC sends the idle to 1000 and my IAC count goes high. If a normal idle IAC range is in the 20's or so it would seem that the minimum air would need to be set to a much higher RPM to allow the IAC counts to be lower. What am I missing (beside a brain)

1989 Astro/Safari
Z=4.3L TBI

Diagnostic Codes

Current Code 24
Vehicle Speed
Sensor (VSS) Short
Circuit

Vehicle Data List

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.98
O2S(mV) 466
O2S CROSSCNTS 66
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:-5 Time:-5.7

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 706
O2S CROSSCNTS 69
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:-4 Time:-4.5

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.98
O2S(mV) 506
O2S CROSSCNTS 72
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:-3 Time:-3.4

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 382
O2S CROSSCNTS 76
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:-2 Time:-2.3

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 14.0
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 400
O2S CROSSCNTS 76
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:-1 Time:-1.1

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 826
O2S CROSSCNTS 78
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.47
VEHSPEED(MPH) 0
Frame: 0 Time: 0.0

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 528
O2S CROSSCNTS 82
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame: 1 Time: 1.1

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.98
O2S(mV) 484
O2S CROSSCNTS 88
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame: 2 Time: 2.3

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.98
O2S(mV) 315
O2S CROSSCNTS 88
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame: 3 Time: 3.4

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 848
O2S CROSSCNTS 90
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.47
VEHSPEED(MPH) 0
Frame: 4 Time: 4.5

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 14.0
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.94
O2S(mV) 502
O2S CROSSCNTS 96
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame: 5 Time: 5.7

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.98
O2S(mV) 382
O2S CROSSCNTS 98
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame: 6 Time: 6.8

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.98
O2S(mV) 444
O2S CROSSCNTS 101
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.47
VEHSPEED(MPH) 0
Frame: 7 Time: 7.9

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 826
O2S CROSSCNTS 104
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.47
VEHSPEED(MPH) 0
Frame: 8 Time: 9.1

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 497
O2S CROSSCNTS 106
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame: 9 Time:10.2

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 311
O2S CROSSCNTS 106
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:10 Time:11.3

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 528
O2S CROSSCNTS 112
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:11 Time:12.5

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 14.0
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.98
O2S(mV) 653
O2S CROSSCNTS 115
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:12 Time:13.6

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 448
O2S CROSSCNTS 116
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:13 Time:14.7

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 14.0
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.98
O2S(mV) 786
O2S CROSSCNTS 118
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:14 Time:15.9

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 804
O2S CROSSCNTS 126
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:15 Time:17.0

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1025
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.94
O2S(mV) 733
O2S CROSSCNTS 129
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:16 Time:18.1

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 484
O2S CROSSCNTS 132
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:17 Time:19.3

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1025
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 488
O2S CROSSCNTS 135
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:18 Time:20.4

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 821
O2S CROSSCNTS 140
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.47
VEHSPEED(MPH) 0
Frame:19 Time:21.5

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.94
O2S(mV) 480
O2S CROSSCNTS 144
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:20 Time:22.7

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.98
O2S(mV) 515
O2S CROSSCNTS 146
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:21 Time:23.8

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.98
O2S(mV) 573
O2S CROSSCNTS 149
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:22 Time:24.9

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 826
O2S CROSSCNTS 152
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.47
VEHSPEED(MPH) 0
Frame:23 Time:26.1

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 373
O2S CROSSCNTS 153
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:24 Time:27.2

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 595
O2S CROSSCNTS 157
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.47
VEHSPEED(MPH) 0
Frame:25 Time:28.4

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 14.0
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 786
O2S CROSSCNTS 160
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:26 Time:29.5

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 14.0
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.94
O2S(mV) 773
O2S CROSSCNTS 166
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:27 Time:30.6

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 14.0
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 466
O2S CROSSCNTS 168
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:28 Time:31.8

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 14.0
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.98
O2S(mV) 573
O2S CROSSCNTS 171
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:29 Time:32.9

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1025
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 542
O2S CROSSCNTS 173
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:30 Time:34.0

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 14.0
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 975
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 453
O2S CROSSCNTS 174
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:31 Time:35.2

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.8
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 737
O2S CROSSCNTS 176
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:32 Time:36.3

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 426
O2S CROSSCNTS 185
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:33 Time:37.4

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 RICH
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 555
O2S CROSSCNTS 188
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:34 Time:38.6

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 488
O2S CROSSCNTS 193
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
Frame:35 Time:39.7

CODES PRESENT NO
3RD GEAR SW ON
AC REQUEST OFF
AIR DIVRT SOL NORM
AIR SW SOL CONV
BATTERY(V) 13.9
BLM 153
CLEAR FLOOD OFF
COOLANT(øF) 191
ENGINE RPM 1000
EXHAUST 02 LEAN
HIGH BATTERY NO
IAC POSITION 77
INTEGRATOR 132
LOOP STATUS CLSD
MAP(V) 0.96
O2S(mV) 417
O2S CROSSCNTS 195
P/N SWITCH P/N
PROM ID 3051
TCC LOCKUP NO
TCC SOLENOID OFF
TPS SENSOR(V) 0.45
VEHSPEED(MPH) 0
FRAME: 36

**ony** · 04-17-2013

the blm an int numbers are a lot higher in the last data, did you change the eprom?

**1great40** · 04-17-2013

I am running the original 6 cylinder prom now

**damanx** · 04-17-2013

Don't feel bad, I feel like I am missing a brain also.

I am pretty new to this also since I've converted from a carburetor to TBI on an engine that was never set up with TBI, so am having to ask for lots of help here.

Hope they remain patient with me.

I don't know if any of the info in my "1st run with 1227747" thread will help or not, but might be worth a read.

**daleulan** · 04-19-2013

Measure the voltage between terminals A9 and A12. If it's somewhere lower than 4 volts then maybe something (the scan tool or the wiring harness) is putting the ECM into a test mode. The self-test RPM setpoint is probably set to 1000 RPM like on the ARJT PROM. And yes, stick with a 6-cylinder PROM. The RPM will not read properly with an 8-cylinder PROM.

**EagleMark** · 04-19-2013

Originally Posted by 1great40

More data was taken with the Actron because it seemed to me that the engine was idling fast again. The data is below but the long and short of it seems that even though the minimum air adjustment was set to 450 +/- RPM with the transmission in drive (this is from my Alldata online manual) once everything is re- connected, the engine runs at 1000 RPM and my IAC numbers are still in the 70-80 range. I'm not understanding something here... The minimum air setting puts the engine at 450 RPM in drive, Then the IAC sends the idle to 1000 and my IAC count goes high. If a normal idle IAC range is in the 20's or so it would seem that the minimum air would need to be set to a much higher RPM to allow the IAC counts to be lower. What am I missing (beside a brain)

I think your brain is OK, just needs to understand a scantool checks for codes and gives some basics for a tech to diagnose trouble areas! If he knows what to look for. It can not give in depth data that we need to tune with or data we can use to help you more then something blindingly obvious, which yours does not.

Like what daleulan said, some old scantools and some cables use a 10K resistor across A and B of ALDL port, this is needed in some 160 Baud systems to get data flowing. But it puts the ECM in ALDL mode which raises RPM to usually 1000 depending on bin and also adds timing. No way to tune like this. Also your scantool is not showing the 3 test modes possible.

This ECM will also idle higher in Park/Neutral then in gear. If you have a good low idle in gear and it goes up when you attach the scantool you can bet it is putting ECM in ALDL mode.

For real help here or anywhere that a good tech does not have his hands on the vehicle we need data logs from a Tuner Program like TunerPro RT. Here's a quick write up on what it does and how to use it, the ADX and XDF files linked to in that post are the ones you need!
http://www.gearhead-efi.com/Fuel-Inj...-a-must-read!-)

It's all you need to scan, record data and the other side is all you need for making adjustments to your chip/bin file. Add some hardware to burn chips and you can dial in anything you want.

Hello

Thread: Setting up my TBI

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