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Bob, winner, winner, chicken dinner! You got it, my gas pedal was "stuck" down, causing the engine to idle high. The ECU was reading the high RPM's like the tech at Transmission Instruments had predicted and wouldn't allow it to go into gear. Foot under pedal, shifts into gear. Now I need to...

Yes hand throttle is all the way down, but I did not try to lift up on the gas pedal to see if it affects the engine rpms. Also, hand throttle doesn't start to increase engine rpms until the throttle is half way up.

Thanks guys. My truck is like a bucking bronco when it down shifts from 3-2 at a stop light, really wants to go. I'll see if I can make the adjustments.

OK, I spoke to a WTEC II expert at Transmission Instruments and he thinks my engine is idling too high which is telling the ECU not too allow the transmission to get into gear.. I've tried to find the procedure to adjust engine idle in the tech manuals without luck as of yet. Can someone point...

No, speedo is dead on.

OK, I took the ECU out and separated the touch pad from the ECU and disconnected the ribbon cable. I sprayed contact cleaner on the terminals from touch pad to ECU and the pins to the wire harness. Reinstalled everything, fired the truck up until air pressure was right and hit the drive...

Thanks, I'll try that. Any idea what size nut holds the steering wheel on? It's bigger than 1 1/8, the biggest socket I have.

Code is 23 12 Apparently something with the shift selector???

Hi, I'm seeing if I can get some quick responses while I go through the manuals. My push button Allison Transmission will not engage. I push "D" drive, it beeps twice and starts flashing 7 N and won't engage. I'm thinking it is probably a sensor, but I just don't know. Fluid is clean and...