i have a 91 DA obd0

use to have a intermittent problem with the fuel where the ECU would throw code 43 which is Fuel system supply malfunction and the car would start running really lean.

well now that i have put in my new engine it is doing this constantly and i havent been able to figure out what it is causing it and its most definatly robbing power.

ive just installed a new wablro 255 pump so i have elimnated it being the fuel pump because it is still doing it.

Let me know if you have any ideas or have had this prob.

-Jay