EFI Live always shows D2 and Ingear. Intermittent start issues

[akbigfoot]

Hi. My 2005 LLY 3500 GMC Duramax has an intermittent start issues. Replaced Ignition SW, Key Cylinder, NSBU sw, and Starter relay. Starter is relatively new and I have checked, there is no voltage to starter solenoid when no start condition exists. All fuses have been checked. Very intermitten, when it's warm in shop, never fails. When Daughter has it at school or cold in mornings or evenings (Live in Alaska) it will not start. Last time, I moved shifter many times and when I went down in the neutral it started, so..I will look at cable. I did not have the special tool to align the NSBU but I was careful. I will see If I can borrow from local dealer. Perhaps readjust cable?
The EFI info has me concerned though:
before getting into EFI Live. In EFI live, Transmission PIDs I always have the following values even when changing gears:
Gear Selector: Value unknown
Park/Neutral Switch: INGEAR
Transmission Switch: D2

I have cleaned all connectors under the hood and now cleaning the PNP (NSBU) connector. I opened the hood and checking for bad wiring and I will trace the harness. I'm looking for insight / feedback.
Tks, Ken
PRI CAPTION DESCRIPTION VALUE UNITS MIN AVG MAX PARAMETER SYSTEM
1 BATTERY Battery Voltage 0.0 V 0.0 13.4 14.3 GM.BATTERY Transmission
1 VOLTS Battery Voltage 0.0 V 0.0 13.4 14.4 GM.VOLTS Battery
1 BIDI Bi-directional Response Code 0 Counts 0 0 0 GM.BIDI Diagnostics
1 RPM Engine RPM 0 RPM 0 672 1282 SAE.RPM Conditions
1 FFCOUNT Freeze Frame Counter 0 Counts 0 0 0 GM.FFCOUNT Diagnostics
1 FFNOTRUN Freeze Frame Not Run Counter 0 Counts 0 0 0 GM.FFNOTRUN Diagnostics
1 FFPASS Freeze Frame Pass Counter 0 Counts 0 0 0 GM.FFPASS Diagnostics
1 PRND Gear Selector Unknown . Unknown Unknown Unknown GM.PRND Transmission
1 GPFB Glow Plug Feedback Voltage 0.0 V 0.0 0.0 0.0 GM.GPFB Sensor
1 PRNDSW-PNPSW Park/Neutral Switch INGEAR . INGEAR INGEAR INGEAR GM.PNPSW Transmission
1 AUXIS-PTO_ON Power Take Off Active . SAE.AUXIS Conditions
1 AUXIS-PTO_OFF Power Take Off Inactive . SAE.AUXIS Conditions
1 TP Throttle Position 0.0 % 0.0 0.1 22.4 GM.TP Throttle
1 PRNDSW-TFPSW Transmission Switch D2 . D2 D2 D2 GM.TFPSW Transmission
1 AUXIS-UNUSED Unused . SAE.AUXIS Conditions
1 AUXIS-UNUSED Unused . SAE.AUXIS Conditions
1 AUXIS-UNUSED Unused . SAE.AUXIS Conditions
1 AUXIS-UNUSED Unused . SAE.AUXIS Conditions
1 AUXIS-UNUSED Unused . SAE.AUXIS Conditions
1 AUXIS-UNUSED Unused . SAE.AUXIS Conditions
1 VSS Vehicle Speed Sensor 0 MPH 0 0 2 SAE.VSS Conditions
__________________
2005 GMC 3500 CC DRW.

 

[akbigfoot]

I should add that when I shift, the PRND321 works fine. The lamp is burned out on one end of the display. Curious if my readings are due to an EFI LIVE thing? I selected auto trans and LLY for computer when connecting.

 

[akbigfoot]

Hi. I have the Allison 5 speed. Last night I found that I could select the Allison 5 speed controller in efi which I did. I then received input on PREVGEAR, GEARSEL. When playing back, disconnected from controller, I notice the play back omits RPM which was working and my BATTERY for trans is 0. I need to reconnect and review. I suspect that the PIDs GEARCOM, GEAR and PRND do not work with the LLY and or the Allison controller. Appreciate you help.
I uploaded my log file when connected via Allison 5 speed controller.
I uploaded my log file, just rename from .pdf to .efi

PRI CAPTION DESCRIPTION VALUE UNITS MIN AVG MAX PARAMETER SYSTEM
1 BATTERY Battery Voltage 0.0 V 0.0 0.0 0.0 GM.BATTERY Transmission
1 VOLTS Battery Voltage 11.7 V 11.6 13.7 14.0 GM.VOLTS Battery
1 BIDI Bi-directional Response Code 0 Counts 0 0 0 GM.BIDI Diagnostics
1 GEARCOM Commanded Gear N . N N R GM.GEARCOM Transmission
1 GEAR Current Gear N . N N R GM.GEAR Transmission
1 RPM Engine RPM 0 RPM 0 0 0 SAE.RPM Conditions
1 FFCOUNT Freeze Frame Counter 0 Counts 0 0 0 GM.FFCOUNT Diagnostics
1 FFNOTRUN Freeze Frame Not Run Counter 0 Counts 0 0 0 GM.FFNOTRUN Diagnostics
1 FFPASS Freeze Frame Pass Counter 0 Counts 0 0 0 GM.FFPASS Diagnostics
1 PRND Gear Selector Unknown . Unknown Unknown Unknown GM.PRND Transmission
1 GPFB Glow Plug Feedback Voltage 0.0 V 0.0 0.0 0.0 GM.GPFB Sensor
1 LOSRS Last Output Speed Range Shift 0.0 RPM 0.0 0.0 0.0 GM.LOSRS Transmission
1 SHIFTLAST Last Shift Time 0.0 Seconds 0.0 0.0 0.0 GM.SHIFTLAST Transmission
1 SHIFTERR Last Shift Time Error 0.00 Seconds 0.00 0.00 0.00 GM.SHIFTERR Transmission
1 EBPSMAX Maximum Gear for Engine Brake Pre-select Unknown . Unknown Unknown Unknown GM.EBPSMAX Transmission
1 EBPSMIN Minimum Gear for Engine Brake Pre-select Third . Third Third Third GM.EBPSMIN Transmission
1 OFFCLUTCH Off-Going Clutch Pressure 0.0 PSI 0.0 0.0 0.0 GM.OFFCLUTCH Transmission
1 ONCLUTCH On-Coming Clutch Pressure 232.1 PSI 0.0 222.8 232.1 GM.ONCLUTCH Transmission
1 PRNDSW-PNPSW Park/Neutral Switch INGEAR . INGEAR INGEAR INGEAR GM.PNPSW Transmission
1 AUXIS-PTO_ON Power Take Off Active . SAE.AUXIS Conditions
1 AUXIS-PTO_OFF Power Take Off Inactive . SAE.AUXIS Conditions
1 PREVGEAR Previous Gear First . First First Unknown GM.PREVGEAR Transmission
1 GEARSEL Selected Gear P . N 6 P GM.GEARSEL Transmission
1 TP Throttle Position 0.0 % 0.0 0.0 0.0 GM.TP Throttle
1 TFT Transmission Fluid Temperature 46 °F 46 47 48 GM.TFT Temperature
1 PRNDSW-TFPSW Transmission Switch D2 . D2 D2 D2 GM.TFPSW Transmission
1 AUXIS-UNUSED Unused . SAE.AUXIS Conditions
1 AUXIS-UNUSED Unused . SAE.AUXIS Conditions
1 AUXIS-UNUSED Unused . SAE.AUXIS Conditions
1 AUXIS-UNUSED Unused . SAE.AUXIS Conditions
1 AUXIS-UNUSED Unused . SAE.AUXIS Conditions
1 AUXIS-UNUSED Unused . SAE.AUXIS Conditions
1 VSS Vehicle Speed Sensor 0 MPH 0 0 0 SAE.VSS Conditions

 

[roy67ss]

I would be interested if you solve the intermittent no-start issue. My son has that problem with his '05 lly. He uses a screwdriver at the sarter solinoid to get it started when that happens. I was thinking either the ignition switch or the NSBU switch but you seem to have those ruled out. I am left with some wire rub somewhere like the harness by the alternator bracket or under the driverside firewall.