i have 91 hb with a b18a1 an pr4 ecu the ecu flashes the led 4 times slow a then 3 fast right after 7 total i have searched everywhere an cant find what the code means....can iget some help? any1 have a page with codes or anything?

 

sounds like code 43, that's for your fuel supply system.

 

Well I got my gas pumped 4 me 2day an noticed when I got home the gas door was open so I checked the cap an it was only half on so im figuring that was it.

 

it is possible i suppose, althought i thought only like obd 1/2 cars would throw codes for the gas cap being loose or missing. basically it would see low pressure in the tank and throw a fuel supply code. however, i accidentally left my gas cap at the damn station once and i drove around for a little while before purchasing a new cap, and i never threw a code for anything. so i'm not really sure

 

Anything in particular to look at?