hello all.
i am looking at installing a 7.4ltr into my 1966 impala. i recieved a modified engine harness to go with the engine, but the previous owner removed the wires going to the OBD2 diagnostics port. without it i am useless.
am i correct in assuming that the diagnostics port should be:
pin 16: constant +
pin 4: earth
pin 5: earth
pin2: serial data
are these the only 4 wires i need to get efi live to speak to the ecu? i have not purchased efi live yet. i have a cable (ebay rubbish) which will allow me to read DTC's and once i get that to work i will go ahead and order efilive.
also: 0411 swap is on the cards, but i just want to get the basic wiring done to the point where itll start and drive. then ill look at swaps later. i plan on headwork/cam/injectors so ditching the blackbox is a certainty, but i like to do one thing at a time.
install>test, install>test etc.
thanks in advance.