need a little help with my KA24de swap

[91hrdbdy]

so i bought this truck and i totally love it. but the other day i was sitting in traffic and the fuse panel got kinda warm. i could smell hot wires. so i got home and started prodding around and well it was a fire waiting to happen bare hot leads 1000.00 bucks worth or electrical tape wrapping a rat nest of wires so i decided to remove the dash and well it just got worse. no grommets. it was really bad.  

 

well i removed all the wiring and did as little cutting as possible so here is where i'm at i have no wiring in my truck. except for the  taillight harness. how do i go about doing this properly. 

 

should i wire the truck back to factory and then add the motor wiring (i just got the can/am box form icehouse) or should i run a new harness for the truck from painless. 

 

I would be willing to pay someone in the SF valley to come over for a afternoon and help me out with this. im not a wire guy. 

[]2eDeYe]

I personally prefer swapped motors to be a separate harness. I also try to make it as easy as possible to go back to the original drivetrain, but that is not really difficult even if the harness is stripped.

[91hrdbdy]

that what i was thinking i should do just fix the factory harness make it work like it was supposed one i get that done then add the engine harness on a completely separate system. 

[K_trip]

- removed -

[91hrdbdy]

so after some thought and finding out my 74 620 had a 78 harness in it i went ahead a rewired the whole thing cab forward. I run a shop here in Simi Valley specializing in GM G-bodys and i stock a 21 circut harness that is a direct replacement for the 78-88 malibu / elcamino. so i went head and pull one off the shelf and started my install. i will be using all the Datsun plugs so i can keep all my dash accessories. and factory turn signal. here are some pics. 

 

here is what i started with all the wiring was just stuffed in the corner

 inside was not much better 

 

found a lot of stuff like this 

 

 

starting to place the fuse box 

 

I ran all the circuts in there own loom so it will be easy to track wiring down later on

 

going to be placing a rubber pass through grommet at the firewall when i come in(fri)

 

around the front all in a nice loom 

 

my fuel pump/fan relay box 

[91hrdbdy]

here is a little update. 

 

ive got the fuse block mounted and ive got functions tail light turn signals and flashers. im waiting on finding a wiper switch to hook that up.

 

 

 

 

ive got the computer mounted under the dash. 

 

 

now here is where my questions begin 

Ive got the can am box and i need some help hooking up the ecm to the motor. 

 

i have these wiring harness left im not sure if i have to use all this stuff ( ive never done a efi system) 

 

 

 

 

i know one is for my motor but the other ones im not sure why i would need them if i replaced the entire trucks harness. 

[91hrdbdy]

do i did a complete rewire of the truck it was a nightmare of a wiring job. i got it all installed and i go to start it up last night it started right up but idles like it has a vacuum leak its running super rich and if i rev it up it acts like its bouncing off a rev limiter. 

 

I did a little research and someone said knock sensor. so i check that plug it is plugged in (this truck ran before i redid the wiring.)  i unplugged the maf while the truck was running and no change. so am i thinking its must me something in the wiring of the maf? 

 

any one have these symptoms before? 

 

 

[datzenmike]

You already have a post on the wiring .. http://community.ratsun.net/topic/57055-620-ka24de-wiring-nightmare/ What I've done is merged it with this one. If you have more woring experiences keep them all together in this thread.