Hello everyone. Yep Newb here User name Rockinjester. Real name is Bobby. I have a feeling this won't be my only post and hope to learn and share with all of you. I took in a 2015 Ace as a partial trade last night with the plan on using it as a tow vehicle for my drag car. Appearance it is in excellent condition. Issues are. It has 1 head light out. and the check engine light with the code 0 - 168 - 3. I'm pretty mechanically inclined so thought I would search for some related story's to test and pin point the problem(s). The Battery is holding charge steady even tho it looks to small. Box is a little bit wider. Cleaned all the WV red clay out that was packed into the voltage regulator. dis connected the battery, touched the positive and negative cables together to clear the memory, Hooked everything back up and started it up. Instant cel. It runs good. Sorta have to baby the throttle if moving in small areas or just putting around. let the rpm drop below 1400 rpm it will die. Open it up it runs pretty good but once the throttle is released the rpms drop and it will shut off. At idle testing at the battery 14.36 volts. Dash lights, and all other lights on. As soon as I take the rpm over 2k the cel light goes out along with only the dash light. Voltage reading will spike to 18v. Head lights and Tail lights continue to operate as they should. Question. 1. Can a blown head lamp cause this? I know it is possible within automotive. 2. voltage regulator is faulty? Thanks in advance.