I have a problem while my Civic was running two of the speed sensor wires touched and the car turned off and now it won't turn on. I think one wire goes to the ecu, another is power and the other is ground. I checked the ecu fuse and its good. Could it burn the ecu or what can it be?

Thanks for the help in advance.

 

I checked all the fuses and they were good, so I opened the ecu and it looked good I couldn't find any place that looked like it burned, so I tried an ecu from a 95 Integra LS (OBDI) and still the car doesn't start. Do you guys have any other sugestions.

 

I just tried the civic's ecu in the integra and the car started. So I know the ecu is good. So what could be the problem?

 

when they touched they could have created a short somewhere else. if you know what wires exactly touched, I could look and see what some of the possibillites are and get back to you. just tell me the wire colors. and exactly what car you have and wiring harness if it has been changed out to something else

 

It was either the black and yellow/blue wires or the black and yellow/white wires.
I have a 94 Civic EX 1.6 vtec stock ecu automatic tranny.

Thanks for the help

 

If you look at that wiring diagram you can see that if anywhere on fuse 24 if it is shorted to ground that it wont give power to the main relay.

Do you know how to search for shorts and find them?

 

No, I don't know how to search for shorts and find them. Is it easy? If you can explain. I'm a quick learner.

Also could the main relay go bad?

Thanks for all the help

 

you are going to have to have a multimeter but make sure that it has the ohm setting. first thing you will do is check for continuity from the power to ground. just set the meter to ohms and place your red lead on the blk yel wire of speed sensor and the blk lead on a known good ground. if it shows to have continuity then there is the short on that wire, if it dosent show to have it then its probally not your problem actually to think about it you should have blown the number 24 in the under dash fuse. would check that first. if your sure that it is shorted and it does show continuity then walk down the circut unpluging connectors untill you can get it down to just a section of the circut. once you get that then just run a new wire then you should be good. i still would check the fuse first to make sure and could verify it by checking for voltage at the hot wire at pgmfi relay

 

Ok thnx I'll check the fuse and then I get a multimeter and look for a short.

 

Thanks gsrhatch2356
It was the fuse you helped alot.

Thanks again

 

Well I am glad you got it fixed.