2012 hisun 500 power loss

[Benjamin]

I have a 2012 hisun..been running well for a while but all the sudden it'll loose most of it power slow me down then start to overheat coolant levels good fan works..also backfires when these issues occur....ive seen people say replace coil...or injector.  Witch idk if it had that or carburetor..also when it gets warmed up I loose reverse lop lot of things went wrong real fast

[aefron88]

I would guess it's running lean and overheating.

Does it have an inline fuel filter?

[Benjamin]

Yes it does didn't think to replace it since I did 3 months back

[aefron88]

The next thing I would do is check the fuel injector.

Ground the spark plug wire. You can make grounding apparatus with a bolt, a ring terminal, a wire, and an alligator clip. The ring terminal goes on the bolt, bolt into the boot wire, and clip the other end of the wire alligator clip on a body bolt. This ground will prevent ignition damage, as well as sparking during the FI test.

Once that's done remove the fuel injector, put it over a rag with the wires and fuel hose attached, and try cranking the engine over. Check for good flow and an even pattern. If you are unsure it's probably worth throwing a new injector in to be safe.

I would go back to driving at this point and see if the issue reoccur. If it dies my next step would be to get an engine scanner setup. The cabling is only around $25. Read my post on how to set up code scanner in the Coleman forum.

What you can do with that is bring a laptop along and use the recording mode. Drive until the drivability issues reoccur, and you can then go back and replay the file and see what changes over that time frame. It's possible a sensor is failing.