Machine has intermittent travel, sometimes when you start the machine and select a direction, the accelerator pedal is dead. machine will not rev up and will not move. Checked the brake switches, replaced the throttle position sensor, ( this was worse) re-installed old sensor and it is now working but may still be intermittent.
Does the throttle potentiometer need to be calibrated??
Can this be done with out a laptop connection?


Second issue is the glow plug indicator is on but the machine is a VW propane engine, any Ideas?

Third, engine runs on after the key is turned off, it appears to run until the fuel runs out after the cutoff solenoid. Any Thoughts???

Thank you in advance for your suggestions