General 1G ECU has no power

[carl5463729]

I have no power to my computer. I was having some problems with it, so i sent it out to steve (the guy that does tons of computer fixes) to get new caps, cleaning and a transistor needed to be changed. I put it back in my car it ran fine for half an hour, i then stopped it and a short while after i moved it in my driveway. After i tried starting it for the third time it would not start. It just turns over but the tach dosnt move and dsmlink will not connect to the computer. I got wiring diagrams for the plugs going to the computer and i found out that my power wire to the ecu is actually a ground.... what does this mean? Im not getting any power to it at all. I have the key in the on position and the off position and it is grounded

 

[turboglenn]

Sounds like the power wire shorted to ground some where and blew the fuse, hence no power and the power wire showing a ground connection. Trace it, fix it and replace the fuse, you should be good to go. What pin are you talking about for the power one by the way?

 

[carl5463729]

i checked my whole car for blown fuses and couldn't find anything. The ones by the clutch pedal, the 3 off the battery and the fuse box in the engine bay, i dont know how to check those black box ones, but all of the fuses were fine. And out of the 3 connectors that are plugged into the ecu, its the smallest connector, and its the top corner away from the computer. the first one is a ground and the second is the power. thick black and red cables

 

[turboglenn]

Well, start tracing the wires then, if they should have power, then there should NOT be a ground source to them at the same time.

 

[b00stedtalon2]

Did you check the MPI relay?