hi my name is nevoon and i have a 1995 Honda civic Dx (1.5 non vtecc)
today i decided to hook up my speed sensor because i converted it from auto to manual and the manual speed sensor plug is different from the automatic . so when i hooked it up today manually inserting the 3 wires into the speed sensor , i took it around the block and came back , disconnected the battery to start up my other car. i left it sitting for about 5 mins then reconnect the battery and tried to start it but it will not start,minding you when i reconnected the battery the positive terminal it gave off a larger spark then usual. and when i turned the car to its ON position the main relay gave a loud buzzing noise. the engine turns over but doesn't start. i realized that the fuel pump wasn't pumping gas into the engine, because i later found out that it wasn't getting power , so since the main relay was making a noise ,these are the testes I've did .

-replaced the main relay
-checked every fuse on both fuse boxes ( under dash & under hood)
-changed ECU fuses
-checked for spark in the plugs
-changed the ECU ( from manual computer to auto back to check if i burnt the computer was burnt)
-swapped the fuel pump (thinking that was the problem but wasnt.)
-i also jumped the fuel pump to see if the new one worked and it did but still the car isnt starting
-also tested the fuel injectors and still not getting any power.
- took a tester and tested all the fuses under the dashboard and under the hood
-ECU fuse (15 AMP ) the fuse box underneath the hood is getting constant power
-opened fuel line to check if gas is flowing but nothing.

i think that since the fuel pump isnt getting power , the injectors isnt getting power because the pump isnt giving an ok to give signal to the injectors ( knowing that the main relay controls all of this .

i also think that the distributor is bad because im sure it should tell the injectors when to shoot gas into the cylinders but then i have a second opinion because its giving spark to the plugs


so basically my problem is my fuel pump and injectors isnt getting power to let me start the car .

 

what is the sound of your relay now?.. still buzzing??

 

Check the ground wires on the thermostat housing. The buzzing relay means the ECU circuits are not powering up fully. Do the headlights, radio, etc. work?

 

sound of the relay is quiet now since it was changed . everything else works
-radio
-headlights
etc.
.

 

i will check the ground wires on the thermostat housing.