Am I misreading this, or did you buy a brand new vehicle from Earthcruiser/Core and it was kicking out a CEL light when you picked it up from them? And they won't fix the issue?? I sure hope that's not the case... I don't think thats acceptable on a base model chevy spark! We've been looking at chassis for our next rig, have to reconsider Core if thats really how it happened...
Let me confirm and be clear and focus on the facts.
When I picked it up new, the CEL was not on but came on before I even left Bend, so about one mile from EC after pick up. EC said when doing the walk thru of it during pick up that they have had about "one out of three" of their conversions trigger a check engine light and to tighten the factory fuel cap "a few more clicks". Realize that I have CORE #4, so in theory, there were only three delivered before mine but they have delivered roughly 80 Fuso and now NPR campers over about ten years. all likely with their same fuel tank as mine. Of course, I have tightened the fuel filler cap many times each with many "clicks", and have refueled the vehicle multiple times in attempt/hope the CEL would reset.
When I requested their support, their only response when there is even a response is to take it to a Mitsubishi dealer. Nearest supporting dealer is a four-hour roundtrip drive (EC is 4x as further), and the fuel filler is now installed in a temporary fashion while the camper box is built and until the storage boxes are made, so no point going to one until the fuel filler is properly installed. I asked EC once arriving home from pick up trip for them to lend/send me a code reader (which I would send back soon as the code(s) were read) to determine the code so that I/we would know the problem to resolve. EC declined to provide a code reader and suggested one for me to buy. So for $150k you get a problem as new, and not even a code reader to tell them what the problem is, or their support. (I'm just stating the facts, but you can sense my frustration with this insane lack of customer care.) I did buy the code reader they recommended and it did NOT work on the Fuso. They then acknowledged that the one they recommended to me was not the one they use even though they earlier told me they recommend it to all of their customers, which indicates that CEL's or other fault codes may be common with their vehicles. I have since purchased a code reader that does read the fault code, confirming it is a fuel evaporative system out of spec.
I have asked EC for support and guidance, which they have said to take it to a Mitsubishi dealer for support, and have even completely disregarded my concern for safety and health, as there is a visible layer of dust around the fuel tank (and not the surrounding areas) indicating a fuel vapor leak, as well as fuel vapor odor, which has horrified friends when they come over and recognize it when standing near the fuel tank. Even when kindly providing these concerns to EC, they have chosen to not address them at all. Obviously, gasoline fuel vapor is highly explosive, dangerous to human and environmental health and a major contributor to air pollution, hence the purposes for the fuel venting/evaporative system on all vehicles made over the last half-century or longer. EC modifies the fuel tank, and in doing so, also removes and replaces the factory fuel sender, which in doing so requires the fuel filler line and vent tube from the sender and from the sender to the engine to be removed and reinstalled. I have checked all of those lines and the fuel sender unit and found two possible sources for the leak--the vent line had a very loose hose clamp (essentially was not even tightened); I have tightened that. That same vent line was also laying on the tank with an S-loop that would/could create condensation puddling at the low spots below the entry into the tank and thus preventing fuel vapors from moving thru and entering the evaporative system. I have tightened that clamp and propped up that section of the vent line to ensure fuel can drain back into the tank. These changes have not cleared the CEL, although they likely won't until enough restarts/time driven or manually cleared, which I will try now that I know the fault code. I have only driven the vehicle home from EC and one trip to and back from a local friend/shop to build & install the camper box, so it has only been driven three times since leaving EC including the drive home from EC.
When I have asked EC for support from a local shop to me, or for them to send a technician to come to my home (plenty of these services available), they have not responded to my requests even after expressing my concern for safety. They have also not offered to address when they replace the pitman arm, which sounds like it will be done at my home. I will of course, kindly ask again that they support this issue and potentially serious safety issue. I would like to provide a positive update of resolution.
They have also yet to provide or offer to deliver the rear winch carrier which I bought and paid for five months ago, and they did not have available when I picked up, nor provided to a friend who picked up his EC six weeks after I picked up mine that EC agreed to provide him so that he could bring it home to me. (I referred that customer to them.) Now EC wants me to pay for shipping on an item that they were late to deliver nor delivered to a friend as mutually arranged with all to pick up. If anyone is traveling from Bend to Reno-Tahoe area, reach out and maybe you can pick it up and bring it to me.
If anyone has any suggestions for a positive resolution or repair of this issue, I'd be kindly grateful for your support and ideas to resolve.
I hope others do not have similar experiences, but also hope that my sharing will help to prevent or remedy any similar issues. I support our community working together, sharing, helping each other, and having many wonderful people and companies providing great products for us to use and provide us great experiences. I can't wait to have these issues resolved and to focus on these many wonderful companies and products and the experiences.