ECU codes 43

I have a friend with a CRX with a b18a1(i think). Anyways, he said the his ECU is throwing a codes...he said it's showing 4 long and 3 short, so that would be codes 43 correct? I looked up code 43 and it is the fuel supply system correct? What could be throwing the code...any ideas would help, thanks

I have a friend with a CRX with a b18a1(i think). Anyways, he said the his ECU is throwing a codes...he said it's showing 4 long and 3 short, so that would be codes 43 correct? I looked up code 43 and it is the fuel supply system correct? What could be throwing the code...any ideas would help, thanks

fuel pressure too high or too low. This is a common CEL on PR4, PR3 and PW0 ecu's....I think it's because no one ever wires up the fuel pressure sensor on the firewall that OBD0 mpfi car's have. I wouldn't worry at all.

ditto