got code 43 on a 90 accord ex ecu got an extra ecu that is confirmed to work got a good working starter and a new distributor and new battery and a 3 month old oxygen sensor. why does it not start.? could it be anything but a fuel pump? if so what? how do i diagnose further? and any body got any links to install a two piece cold air intake

 

listen for fuel pump activation upon switching the ignition on. if no sound, check your main relay.

 

forgot to mention got a new one from honda

 

and the car did start today found out it was a simple fix the battery connections ,but still have code 43 so i cleared the computer and installed a short ram air intake instead of cold cause the second pipe i had too many problems with. the idle problemm seems to be gone ,but not gonna drive it till tomorrow. need to get it fixed if code 43 stays so i appreciate any suggestions for the diagnosing or fix