90 hatch, dpfi, solid cel, details inside
 

i have a 90 hatch with dpfi

the fuel pump is hot wired to a switch, the cel comes on right when i turn the key (power on before the starter switch)

i tried to bump start it by towing it for 2 blocks in first gear but it just wouldnt go on its own.

my buddies 91 dpfi hatch was there so i swapped ecu's to check it and his lit up with a solid cel in my car, but both ecu's worked fine on his car.

any ideas would help me greatly. thanks guys.

Re: 90 hatch, dpfi, solid cel, details inside
 

Weird...both ECUs light up solid in your car but are fine in his.

I'm not sure what to tell you... :-\

Re: 90 hatch, dpfi, solid cel, details inside
 

grounds?

Re: 90 hatch, dpfi, solid cel, details inside
 

checked them all. i have the dash pulled now and am hunting with the manual and multimeter.

Re: 90 hatch, dpfi, solid cel, details inside
 

Let the fun begin :D Good luck man. Hunting down problems like that is alway's an adventure.

Re: 90 hatch, dpfi, solid cel, details inside
 

ok, i fixed the solid cel. the negative battery terminal was missing the smaller chassis ground. i ghetto'd one up real fast and no more solid cel. no codes at all, but my ---- still wont start. gonna try towing it in first again

Re: 90 hatch, dpfi, solid cel, details inside
 

do i get free knuckles now? :P

Re: 90 hatch, dpfi, solid cel, details inside
 

im still getting a solid cel when the fuel pump is off, but i get no codes when the fuel pump is on, so i tried to bump start it again with no codes, fuel pump on and i still have a car that doesnt run. i'm about to just sell this as a shell... ----. *any ideas guys? im out of them atm. thanks.

Re: 90 hatch, dpfi, solid cel, details inside
 

if the car doesnt crank check ur main relay

Re: 90 hatch, dpfi, solid cel, details inside
 

who ever had the car before me pretended to be a wireing master. already had the dash pulled so i pulled the heater core all air ducts and sound deadening material i found like 3 wires worn and just twisted together. i soldered them all up and i resoldered everything in 3 of the main relays that i have. im still stranded... ill keep y'all updated though