injector wire help

[calisfinest240]

Hey guys i have an rb25det and at first i couldn't get it to start but i found the problem. A power wire off the injector came disconnected in the harness so i put them back together and it fired up. so when i came back to repair it with solder it touched ground and sparked and now it wont start. Anybody have any idea of what it could have happened?

[Sileighty_85]

might have fried the ECU

Open it up and look for burnt tracks or resistors

Thats why anytime you do maintenance, Especially electrical work that you disconnect the battery

[Hashiriya415]

ecu grounds the injectors so you didn't fry that side. The positive is fused and runs from the ignition switch, most likely fuse popped.

[calisfinest240]

I know i def messed up not taking the neg cable off totally slipped my mind. I tried another ecu and it wasn't that. Ill check the ignition fuse...thanks

[Sileighty_85]

ecu grounds the injectors so you didn't fry that side. The positive is fused and runs from the ignition switch, most likely fuse popped.
thats right immmm dumb:duh:

[calisfinest240]

I tried the ignition switch fuse but its ok. it cranks but it just doesn't turn over. I noticed that when i turn the key on on the fuel pump sounds like its studdering to turn on.

[calisfinest240]

Anyone have any ideas???

[Hashiriya415]

check to see if you are getting B+ at injectors with key on and 0 with key off, check to see if your getting B+ at fuel pump, if you don't then the ecu might not be sending out the voltage to turn on the relay or the relay might be broke.

[Rabboni]

Sounds like you blew a fuse. Get a FSM and it will tell you which fuse runs the injectors.

[calisfinest240]

I checked all the fuses and they're good... Does anyone know where the injector fuse is? Ive searched and nobody seems to know where its at. or is it a relay?