Under Hood Wiring Harness
- Thread starter trey
- Start date
jjorgensen52
NHSTE - I'm the only one!
Re: Under Hood Wiring Harness
harness ougth to be pretty similar... you could get a standard one and mod it with the diagrams from the factory supplement
harness ougth to be pretty similar... you could get a standard one and mod it with the diagrams from the factory supplement
VermontTy
Support Our Troops
Re: Under Hood Wiring Harness
I got a 1992 C1500 V8 engine harness to use as a donor (long story...) and it was suprisingly similar to the SyTy engine harness. We have some extra swizzles like the boost control and IC pump relays and sensors, but as far as MAP, coolant temp, oil pressure, distributor wiring, IAC and TPS go, the wiring itself is identical (don't know if the ECM connections are the same or not.) If you need it, I have all of the diagrams for the engine and interior, as well as the ECM connections and what not linked below; click on "information" or something, and there is a folder for diagrams and stuff. Let me know if you run into any issues, I'm 3-knuckles deep in wiring at the moment.
http://www.northeastsyty.com/gallery/view_album.php?set_albumName=0026
EDIT
Also, if you need wire of any given color (blk/white, green/blk, etc.) to patch up your harness, let me know. I've got a a couple strands kicking around on the floor I could send to you.
I got a 1992 C1500 V8 engine harness to use as a donor (long story...) and it was suprisingly similar to the SyTy engine harness. We have some extra swizzles like the boost control and IC pump relays and sensors, but as far as MAP, coolant temp, oil pressure, distributor wiring, IAC and TPS go, the wiring itself is identical (don't know if the ECM connections are the same or not.) If you need it, I have all of the diagrams for the engine and interior, as well as the ECM connections and what not linked below; click on "information" or something, and there is a folder for diagrams and stuff. Let me know if you run into any issues, I'm 3-knuckles deep in wiring at the moment.
http://www.northeastsyty.com/gallery/view_album.php?set_albumName=0026
EDIT
Also, if you need wire of any given color (blk/white, green/blk, etc.) to patch up your harness, let me know. I've got a a couple strands kicking around on the floor I could send to you.
VermontTy
Support Our Troops
Re: Under Hood Wiring Harness
What is screwed up? The underhood harness is split into 3 plugs on the firewall by the booster. One goes to the headlights and foglights, one carries some power and what not on a 3 wire plug, and the other one is the main line across the firewall to the ECM. Many of the wires you see in that huge bundle running on top of the booster just run from the ECM on the passengers side, into the engine bay, across the firewall, and to the plug on the drivers side, and the ones that dont are connected to various sensors. Does it act funny, or does something just plain old not work? I'm doing my whole engine bay, and as scary as it sounds, it really isn't bad once you commit to it and get involved. There's a pile of sensors and plugs, and they all run back to the ECM. The diagrams show the wire colors, and the ECM plug diagram shows where they are to be connected. It's just a scarier version of putting the round peg in the round hole and square peg in the square hole.
What is screwed up? The underhood harness is split into 3 plugs on the firewall by the booster. One goes to the headlights and foglights, one carries some power and what not on a 3 wire plug, and the other one is the main line across the firewall to the ECM. Many of the wires you see in that huge bundle running on top of the booster just run from the ECM on the passengers side, into the engine bay, across the firewall, and to the plug on the drivers side, and the ones that dont are connected to various sensors. Does it act funny, or does something just plain old not work? I'm doing my whole engine bay, and as scary as it sounds, it really isn't bad once you commit to it and get involved. There's a pile of sensors and plugs, and they all run back to the ECM. The diagrams show the wire colors, and the ECM plug diagram shows where they are to be connected. It's just a scarier version of putting the round peg in the round hole and square peg in the square hole.
jjorgensen52
NHSTE - I'm the only one!
Re: Under Hood Wiring Harness
Plus some soldering and crimping... What kind of mods did he make to the harness?
Plus some soldering and crimping... What kind of mods did he make to the harness?