Im throwing code 43 (fuel supply)..ive talked to a bunch of people and they said it was there regulator...I changed mine nothing. I also checked all vaccum lines no leaks..only thing I can think of is clogged injectors..any one have any suggestions

by the way the motors is a jbm b20B

 

Yea clean your injectors and check your fuel filter too. I have a b20b in my rex throwing the same code and i put new fuel filter, and O2 sensor. This fixed my problem.

 

more than likely o2 sensor. had the same problem before