Hello everyone. I took my 92 Accord on a 4 hour trip the other day. On the way back, I was coming down a pretty big hill and my car just shut off. I pulled over to the side and got crank but no start. My immediate thought was the main relay. I wrestled it out of it's place and smacked it a few times. No dice. I popped it out of its enclosure and inspected the solder joints and everything looked solid. It wasn't clicking when I turned the key though. I then checked fuses. The under hood ECU fuse was fine, but the 15amp one under the dash was blown. I replaced the fuse and gave it another try. I heard the relay click upon the initial key turn but I didn't hear it click again. At this time, I noted that the CEL was on for a few seconds after turning the key, and then it would turn off.
I gave up and had a friend come tow me home (waited 3 hours in the heat on the side of the highway in northern Nevada lol). When I got it home, I went and picked up a new main relay and swapped it out. Same issues. I could hear it click, but no start. So I decided to get out the multi-meter and do some testing. The grounds I was able to test seemed good. I then tried jumping the pins to power the pump manually and I the relay would click as well as something under the hood but I cant really tell if I could hear the pump. I noticed that the relay was sending 7 volts to the fuel pump constantly instead of priming it for a few seconds. I checked the CEL and saw that it was staying on when the key is on. I am really lost on what to do at this point. Did my fuel pump just suddenly die? My car has 150k miles. But would that explain the blown ECU fuse and a perhaps now dead ECU? Any help would be great. Thanks.
EDIT: I don't have a lot of time as this is my only car so I went ahead and ordered a new fuel pump (Spectra Premium), fuel filter and also a used 37820-PT3-A04 ECU from eBay. Feel free to chime in suggestions though while I wait for those parts to arrive.
I gave up and had a friend come tow me home (waited 3 hours in the heat on the side of the highway in northern Nevada lol). When I got it home, I went and picked up a new main relay and swapped it out. Same issues. I could hear it click, but no start. So I decided to get out the multi-meter and do some testing. The grounds I was able to test seemed good. I then tried jumping the pins to power the pump manually and I the relay would click as well as something under the hood but I cant really tell if I could hear the pump. I noticed that the relay was sending 7 volts to the fuel pump constantly instead of priming it for a few seconds. I checked the CEL and saw that it was staying on when the key is on. I am really lost on what to do at this point. Did my fuel pump just suddenly die? My car has 150k miles. But would that explain the blown ECU fuse and a perhaps now dead ECU? Any help would be great. Thanks.
EDIT: I don't have a lot of time as this is my only car so I went ahead and ordered a new fuel pump (Spectra Premium), fuel filter and also a used 37820-PT3-A04 ECU from eBay. Feel free to chime in suggestions though while I wait for those parts to arrive.
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