I have a chance to get a Nissan A15 fuel injected from a concrete pump. The ecu has gone bad so i was thinking swapping to a carb. I was wondering if anyone has any experience with these engines. Are aftermarket parts available? It seems like it would be a reliable engine it only turns 2600-2800rpms max in the pump. There are so many variants of the engine I'm not sure how much hp it has at low rpms. I'm guessing it's low hp because the pump only needs about 40-45hp to run.