Ground wire plug at front LH side
- Thread starter jclars
- Start date
Well S_Mazza, that is certainly the issue I am experiencing right now! ("Car" not starting.) And I am sure I plugged this in somewhere before, but I cant locate the other cartridge end. (I have had the truck body off the chassis for the last 5 weeks and this past weekend put it all back together again.) Can you tell me where the other end would normally be located? Or what it should connect to?
I have knowingly disabled a lot of other wires (between 50-75 I'm guessing) since I started the engine last, so this could be quite interesting. However, at the moment, my fuel relay isnt working without jumping it at the test port. I have good spark at the coil packs, but no evidence of firing at the cylinders when I jump the fuel pump to run constantly. However, I will save those issues for a different post, if this grounding issue isnt it.
Thanks,
John
I have knowingly disabled a lot of other wires (between 50-75 I'm guessing) since I started the engine last, so this could be quite interesting. However, at the moment, my fuel relay isnt working without jumping it at the test port. I have good spark at the coil packs, but no evidence of firing at the cylinders when I jump the fuel pump to run constantly. However, I will save those issues for a different post, if this grounding issue isnt it.
Thanks,
John
S_Mazza
Registered User
I don't have the EVTM handy, but as I recall, the other half of that connector comes up past the battery, in that corner where the radiator support and inner fender meet. I don't know its exact routing from that point.
I would say that ECA and PCM are probably interchangeable terms.
Do you still have the electric fans? Another symptom of having that wire unplugged is that the low speed fan will run constantly from the time you turn the key to "on".
I would say that ECA and PCM are probably interchangeable terms.
Do you still have the electric fans? Another symptom of having that wire unplugged is that the low speed fan will run constantly from the time you turn the key to "on".
The fans are plugged in, but I did not get that symptom. I did however lose the fuel pump, except when turning the ignition key to the off position, I got about 2 seconds of pump action.
I did not check the injectors for pulse, when I overrode the fuel pump, but figured it probably wasn't even worth determining, until I got the grounding issue resolved. The two grounds in the PCM (I prefer this term) are black/lt. green, so I will try to trace those backwards tonight to see if I can locate the connection.
One difficulty I have is that my truck is a "low rider", and I know part of that harness is sandwiched between the radiator and frame, so I may have missed it in my final routing. Good to know there is a possible fix in the works.
Thanks,
John L.
I did not check the injectors for pulse, when I overrode the fuel pump, but figured it probably wasn't even worth determining, until I got the grounding issue resolved. The two grounds in the PCM (I prefer this term) are black/lt. green, so I will try to trace those backwards tonight to see if I can locate the connection.
One difficulty I have is that my truck is a "low rider", and I know part of that harness is sandwiched between the radiator and frame, so I may have missed it in my final routing. Good to know there is a possible fix in the works.
Thanks,
John L.
Alive again
Thanks to Mr. Mazzo, I was able to track it down to about where he described it's location in the SC. Just below my battery box. This is one of the benefits of locating most of the transplanted components where they are located on the original SC.
I traced it back from the PCM at the RH firewall and found the wires forked to the left up by the IRCM. On the way, I found a plug connection undone and thought I'd try the ignition. The low speed fan came on just like described in the diagnostic above. I followed the fork across, and buried beneath my ground cable and light wires, sat the little bugger. Plugged it in, and it started right up. VERY PLEASED and I learned a little more about function of various parts.
I am now getting it ready for a road test. I am going to run it as a rat rod for awhile. As you can see from the pic, it is mostly SC at heart. In fact I am thinking of some old fashioned signage on the doors that might highlight the SC hidden underneath. Thinking of "ANGRY BIRD" with an older style 59ish T-bird logo in the center.
Thanks again for the help and for sharing this valuable knowledge base.
John L.
Thanks to Mr. Mazzo, I was able to track it down to about where he described it's location in the SC. Just below my battery box. This is one of the benefits of locating most of the transplanted components where they are located on the original SC.
I traced it back from the PCM at the RH firewall and found the wires forked to the left up by the IRCM. On the way, I found a plug connection undone and thought I'd try the ignition. The low speed fan came on just like described in the diagnostic above. I followed the fork across, and buried beneath my ground cable and light wires, sat the little bugger. Plugged it in, and it started right up. VERY PLEASED and I learned a little more about function of various parts.
I am now getting it ready for a road test. I am going to run it as a rat rod for awhile. As you can see from the pic, it is mostly SC at heart. In fact I am thinking of some old fashioned signage on the doors that might highlight the SC hidden underneath. Thinking of "ANGRY BIRD" with an older style 59ish T-bird logo in the center.
Thanks again for the help and for sharing this valuable knowledge base.
John L.
