I have and old MTH Premier F-3 in which I installed a PS/2 updgrade kit a number of years ago. It has worked perfect since that upgrade. I recently replaced the GOW bulbs with LEDs for the headlight and number boards. I also added green LED marker lights. After completing all of that wiring, I ran just the chassis around the layout to test the lighting. Everything worked perfectly. I gently placed the shell on the chassis and did a test run again before screwing the shell to the chassis. Everything still worked.
However, after screwing the shell to the chassis and placing the engine on the track and doing a startup, the engine made a weird sound from the speaker. It had no idle sounds and would not sound the whistle or bell. The Z4000 showed only about 1.4 amps, so no shorting to ground. I rolled the throtle to about 5 smph and the engine took off and I had to turn the handle back on the Z4000 to stop it.
Upon starting up again, I am still getting no sounds and the throttle caused the engine to take off again. DCS is recognizing and finding the engine so I did a factory reset with the handheld remote. I added the engine back in the remote and started up again with the same results. I then did a conventional reset with the 1 W and 5 B, it did not fix the issue.
I am at a loss. I had a perfectly running chassis, I screwed the shell to the chassis and the problems started.
I did check for pinched wires, exposed wires, cut insulation, etc and found nothing.
The funny thing is, I did this same lighting upgrade to another F-3 PS/2 upgraded engine simultaneously and that one is working perfectly even after screwing the shell to the chassis!
How can I get this engine to respond and function again? I have done a couple of PS/2 and PS/3 upgrades so I am comformtable with all of the wiring, but I just cannot figure out what is wrong with this engine.
Any help or guidance is greatly apprectiated, thanks.
