how hard is it to make the truck harness from the lq4 stand alone?
12-12-2008, 04:41 PM
#2
"How hard" is relative. I dont think it is, but I have a degree in electronics.
Its more time consuming than anything. If you prepare yourself with the proper tools and documentation it can be done with patience.
I will say that you be in a much better position to troubleshoot down the road if you do it yourself. You will learn a ton more than just snapping in a new harness.
Its more time consuming than anything. If you prepare yourself with the proper tools and documentation it can be done with patience.
I will say that you be in a much better position to troubleshoot down the road if you do it yourself. You will learn a ton more than just snapping in a new harness.
12-12-2008, 04:53 PM
#3
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i love hacking up harness and would like to know some of the same info. i can pull wiring diagrams and so forth here at work. i guess a question that i would have is do you just cut/remove circuits that are not needed? is there a list of the circuits that you remove?
12-12-2008, 05:52 PM
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k pulled the 05 k2500 pcm diagram. im going to guess these are the ones to cut/remove from the harness
? mark next to ones not sure of
pin on blue connector
going man trans
13 torq signal requested?
14-15 UART serial data?
17-18 trans pressure switch sig a&b
25-26 02 low sig bank 2 sen 1&2
32 trans range sensor
33 trans cruise brake
34 trans range switch signal
35 cpp switch sig?
53 low ref (a/t)
54 low ref? assuming for a/t trans
65-66 high sig for both bank 2 02 sensors
70 low oil switch signal
72 trans range switch b a/t
79 3-2 shift sol
green connector
3 fuel pump relay control-secondary
5 delivered tq signal?
6 pc solenoid valve high cont a/t
8 " "b
16 4wd low signal
18 clutch start switch sig? do you add it if its an auto pcm?
19 axle switch sig 4wd
20 vss signal low
21" " high
22-23 AT ISS low and high sig (mt1)
26 27 28 29 IC 1,7,6,4 control
34 evap canister purge sol
42 tcc valve control
45 evapcanister vent solenoid control
47-48 2-3, 1-2 shift sol valve cont
51 tft sensor sig (a/t)
53 bank 2 heater cont
54 fuel level
62-63 trans range and press
66-69 IC 8,2,5,3 control
this is what i can see that i could live with out
any help would be great
? mark next to ones not sure of
pin on blue connector
going man trans
13 torq signal requested?
14-15 UART serial data?
17-18 trans pressure switch sig a&b
25-26 02 low sig bank 2 sen 1&2
32 trans range sensor
33 trans cruise brake
34 trans range switch signal
35 cpp switch sig?
53 low ref (a/t)
54 low ref? assuming for a/t trans
65-66 high sig for both bank 2 02 sensors
70 low oil switch signal
72 trans range switch b a/t
79 3-2 shift sol
green connector
3 fuel pump relay control-secondary
5 delivered tq signal?
6 pc solenoid valve high cont a/t
8 " "b
16 4wd low signal
18 clutch start switch sig? do you add it if its an auto pcm?
19 axle switch sig 4wd
20 vss signal low
21" " high
22-23 AT ISS low and high sig (mt1)
26 27 28 29 IC 1,7,6,4 control
34 evap canister purge sol
42 tcc valve control
45 evapcanister vent solenoid control
47-48 2-3, 1-2 shift sol valve cont
51 tft sensor sig (a/t)
53 bank 2 heater cont
54 fuel level
62-63 trans range and press
66-69 IC 8,2,5,3 control
this is what i can see that i could live with out
any help would be great
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12-14-2008, 03:32 AM
#10
I wouldn't say it's that hard, as long as you have the correct PCM Pinout Diagram, you can run the Wires to where they need to go.
Me personally if I was puttin in a new Engine, I would strip the Harness down, and then plug the Connectors into the proper places on the Sensors that I was running, then group the Wires for everything and run them clean, then tape it up.
Me personally if I was puttin in a new Engine, I would strip the Harness down, and then plug the Connectors into the proper places on the Sensors that I was running, then group the Wires for everything and run them clean, then tape it up.
