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Actually in thinking about what you have said I do recall when I opened the passenger side door the dome light stays off then flickers on. Might be my first place to look. I never really thought much about it because the 93 is an old beater car. Not as nice as my 92 so just haven’T put as much into every little issue.
Thanks again!
Thanks very much for that. I’ll def check that. A wire I’m moving when taking ECU in and out would be good reason to have that issue. I’m not sure I understand how a parasite draw would cause it to not start as after replacing the battery I had plenty of battery power to turn the car over.
Quick Update and a few questions:
Long story short replaced some of the things many suggested. The ignition switch being one. Still the same. Will crank but not start. I did have to fix a bad connection on the ground wire that goes to the starter. That is done.
Yesterday I decided to pull the ecu. Look at it for obvious issues. See if anything looks burned out. About the time I had it off to test my wife came home with my 92 Honda Civic. So on a whim I thought I’ll pull the battery off the 92 put on the 93 and see if it will start. After all the battery on the 93 is very old and it wasn’t charging right. So plug ECU back in and put on battery. Started right up. Let run for a long while. Stopped car and left for hour came back out and 93 started right up. So thought ok just needs new battery great.
This morning the 93 the car with the problem was back to its old ways. Turn over but not fire. So I decided to start where I left off yesterday. I pulled the ECU looked it over. Wasn’t anything on there that was noticeably wrong. I’m not capable of testing the ECU.Just way too much on that to test and I wasn’t sure how. But after looking for obvious issues put the ECU back together and plugged it back in. Tried to start and turned over right away and fired up perfectly. No issues at all.
This is really what I did yesterday. Pulled ECU plugged back in and boom fired right up. Today unplugged checked plugged in fired right up.
So questions would be did i reset it someway by unplugging it? Would it be reasonable to think that its the ECU and every time I unplug it and plug in it resets and starts or its there something else that would cause a failing that would make this happen?
Thanks very much. One more question about it. If the ignition switch is out would that cause the #18 fuse in the fuse box under the dash that is for the starter signal to not read any power to that fuse?
Thanks very much. One more question about it. If the ignition switch is out would that cause the #18 fuse in the fuse box under the dash that is for the starter signal to not read any power to that fuse?
Sorry let me clarify.
took main relay out of 93 Civic (car that wont start) put in my 92 Civic and it started right up. So relay was working in the 92 Civic. So not the relay.
Sorry let me clarify.
took main relay out of 93 Civic (car that wont start) put in my 92 Civic and it started right up. So relay was working in the 92 Civic. So not the relay.
Thanks for the replies!
Ok so an update is needed on further inspection.
I retested the fuses last night. All fuses checked out except the #18 fuse under the dash. It is the starter signal fuse. It is related to the main relay and how the car starts. I replaced that fuse but didn’t help any. There isn’t power coming to that fuse from what I can see in the test. I was not able to investigate further.
I am pretty sure based on my work that I have spark and everything related to that is fine. One thing I didn’t mention is test of battery and alternator is fine.
I did test the main relay as I said have a 92 Civic I put relay in and car fired right up.
Thoughts?
Thanks for the replies!
Ok so an update is needed on further inspection.
I retested the fuses last night. All fuses checked out except the #18 fuse under the dash. It is the starter signal fuse. It is related to the main relay and how the car starts. I replaced that fuse but didn’t help any. There isn’t power coming to that fuse from what I can see in the test. I was not able to investigate further.
I am pretty sure based on my work that I have spark and everything related to that is fine. One thing I didn’t mention is test of battery and alternator is fine.
I did test the main relay as I said have a 92 Civic I put relay in and car fired right up.
Thoughts?