charliegt

I am following the manual for troubleshooting error code 73.

Step 2 says:

Is connector A terminal voltage OK with injector connector disconnected?

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I put the positive end of the voltage meter connector A and grounded the other end. It read positive voltage. However, it reads positive voltage for connector B also - Does this mean there is a short or is it supposed to be this way? I tried the same thing on a different car and only one connector would register.

Thanks,
-Charlie

charliegt

I just hooked up the tester to both A and B connectors and it says there is continuity between them. I tried it on a different car and there is no continuity. I assume this means there is a short?

-Charlie

charliegt

Come on, doesn't anybody know????

-Charlie

charliegt

Alright. I got to the front secondary injector and did the same tests and the results were the same. I am guessing that this injector connecter is ok so that should mean there is nothing wrong with the other one. This leads me to believe that the problem lies within the rear secondary injector itself. I have the retaining cap off and am going to pull the injector out tomorrow and take it somewhere to have it tested.

Does that make sense?

-Charlie

spurvo

I came up with a long *** response yesterday to this, only to realize I really DIDN'T know enough to be helpful. From what I can gather, both electrical connections on the injectors see positive voltage when the injector is to be OFF, then the ECU drops the voltage to allow current to flow FROM the EGI main relay TO the ECU, which opens the injectors and fuel flows.

IFF that's correct, then with the engine not running but ignition switched to run (all idiot lights on), then there would be voltage at both connection points to keep the injectors off until cranking occurs.

But that was too big an if for me to respond earlier and end up looking like even MORE an *** that I usually do

duboisr

Are the injectors off ,closed with no current. If not the pressure will go out with the key off and the motor will flood every time you turn the key off. Key off injectors closed . Car running injectors open when the ecu sends current to them at the correct time, and duration .

charliegt

I found the problem. Someone had cut the rear injector wires at the ecu and spliced them into the front injector wires. Then they ran wires from the rear injector spots on the ECU to something that I assume tricked the ECU into thinking it was all hooked up. Whatever the wires were hooked to was unplugged by the body shop when they put in the new dash and that is why I was getting errors and limp mode even though the car seemed to run fine after I reset the ECU.

Thanks guys!
-Charlie