I replaced main relay and fuel pump already, car will start and die in like 5 seconds or it can start and die in like 5 minutes, my main relay is brand new honda original parts, and so is the fuel pump, my fuel filters are both new, so it is my distributor. Im thinking on starting the car on fire by now :-(


1994 Civic DX D15B7 Engine

 

This^ is only a guess, not a conclusion.

When engine won't start:

1) Does fuel pump prime?
2) Is there bright white spark at all 4 plugs?
3) Any CEL codes?

 

1) fuel pump primes pretty good
2) spark is ok
3) it has only oxygen sensor CEL code

 

Which O2 sensor code?

 

CEL code 1

 

no one knows? well I'm just going to add that i tooked out my ecu, opened it and found a blown transistor on it, going to replace it tomorrow hoping that puts an end to my issue.