I am having problems with my 94 civic cx the fuel pump is not working and I'm not getting any spark it will turn over fine I have already replaced the main relay and have also put in a new ecu thought it was just a fuel problem but checked for spark today and had none is this a bad ground somewhere maybe? Any input will help
I will post the results tommorrow butim almost positive that it will not have any power cause I've eleminated almost everything else it could be
It's possible that both tabs on both fuses will have voltage and that the problem is a bad wire (1) between fuse 31 or 24 and the main relay, (2) between the main relay and ECU, or (3) between the ECU and the G101 ground. (4) It's also possible that the ECU is bad.
If the one of the fuses does not get voltage, then (5) there's probably a bad wire between the ignition switch or hood fuse box and the fuse.
Obviously, some methodical electrical testing is needed to precisely pinpoint the problem.
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