I wanted to know if this wire (gray wire to all 4 injectors) should have 4 ohms of resistance seeing the PCM should ground the injectors, right? I used my DVOM(with it on Ohms) and touched one lead to the injector connector(gray wire) with all injectors unplugged and the other to the engine block to do a resistance test. When I had a low resistance reading I unplugged everything in that circuit( I use Alldata and Mitchell wiring diagrams) and the low resistance didn't go away till I unplugged the fuel pump connector back by the tank. I unplugged the oil pressure sensor and then the relay for the fuel pump and then the fuel pump. Is this normal for this wire to have that low resistance like that. According to the wiring diagram it seems that this wire is a positive wire. Also one of the drivers in the PCM is not reading over 50 K when grounded to the PCM case when PCM is not plugged in, and this is a test from Mitchell. Could the fuel pump be shorted and fried that part of the driver for injector # 3?
Feb 21, 2009 at 11:53 AM
