my ecu wont turn on. the bulb did not blow. i put in a new engine and started it. had some of the sensors work i think the map but it was idleing high and when i hit the gas my mph was showing my rmp...fuel lines are good fuel pump is good. ecu is good. now when i try and start it the ecu light dosent come on at all. pls help i need my car back on the road

 

Do you mean CEL when you say ECU? If so, check whether the bulb is blown.

When you hit the gas and the mph went up, was the transmission in gear? Does the car drive?

 

so delete two of them.

 

tryed to delete them in advanced editing but didnt see it. if a mod want to delete it i give them permission. i didnt think it did it three times though didnt mean to. i jus need help with my car thats all.

 

yes i mean cel light. umm the bulb isnt blown. no the trans was not in gear cause i had jus drop the motor in and jus started it to see if it workd so its still jacked up.

 

check ALL your fuses, there is a 30a fuse under the dash that goes to the ecu.

 

ill give it a look. cause i kno my 15amp fuse is good under the hood.

 

so i did a little messing around and i took the wire from my fuel pump and touched it on to my ecu power source. my check engine light come on but i get this grinding noise from the main relay and it opens but dosent shut off.???? any clues.

 

i say check all your grounds, there should be battery - going to the motor/trans and one going to the frame, also there should be some on the thermostat housing.

 

94civichatchback i love u no homo. i went to check all my grounds and come to find out it was my thermostat houseing ground. thanks thanks thanks. my car is back on the road.