Help Ecu Problem!!!

[Jovanni91Da]

Ecu not getting any power to it not reading any code sensors check engine light.......only showing battery light what could this be????

[jdmjunkie9753]

Bad ground somewhhere?

[Wavy1019]

Bump, bump,bump

[CTgoldhatch]

you are missin or have a bad ground from the motor to the chassi. you need to run one or two ground wires from the motor to the chassi or right to the neg on the battery. your ECU ground is on the motor harness and grounded to the theromostat housing and it not being ground to the chassie or battery it wont work.

[Jovanni91Da]

I got to 2 grounds I kno one of the are from the chassis to the battery dnt know bout the other one ill check that one tomorrow....if it's not one of those what else you think it could be....if anyone wants to try to come help pm me and ill let them know what's good with if they could get it good to go

[203DsmFrEaK]

check ur cigarette lighter fuse....it powers the On Board Diognostics port,its not starting.....ur DA?

[Jovanni91Da]

Nah my 91 civic lx

[203DsmFrEaK]

Nah my 91 civic lx

ahh ok

[jdmjunkie9753]

There is 3 grounds..

From the radiator support to the valve cover
From the tranny to the chassis
And the one on the thermostat housing

Check all 3 of those

[ct tibby]

i would add sum grounds just for shits n gigs

[LS/Vtec]

Check your grounds, Your ecu fuse located in the fuse box under the hood, or a bad ecu.

[Jroc860]

ECU fuse

[evo-mentalites-cc]

not any fuses i checked them all and tomarrow im going to change all of the grounds with new wire and add a couple i hope it works car has been driving me crazy

[Jovanni91Da]

Yea man its been like this forna couple days no not knowing what's wrong with it.....need it running asap before the hubbard park meet