Ground wiring

fivetodrive

fivetodrive

CRISPY
I am working on crispy and I am struggling making sure that all the grounds are in place. All I currently have as a ground wire is the one from the negative terminal to the engine. So I need to addthe rest I only have my phonefor the internet at home so searching sucks... Found a post that helped detail the connections to the negative terminal.

http://www.syty.net/forums/showthread.php?t=89499&highlight=ground+battery

But also some posts that referenced grounds on the back of the heads mine does not have those connected.


http://www.syty.net/forums/showthread.php?t=71427&highlight=ecm+ground

Can anyone point me in the right direction? I was also trying to find the post that referenced adding another ground or power connection to the ecm to help stabilize it....

Thanks....
 
fivetodrive

fivetodrive

CRISPY
Re: Ground wiring

Found the post Dave! And another with ecm pinouts...

http://www.syty.net/forums/showthread.php?t=58556

DAVEP said:
Here are most of the Grounds in the SyTy engine compartment.

G100 Battery Ground Cable. Connects to RH rear cyl head.
G101 Sheetmetal Ground. From Batt neg to core support by RH headlight.
G107 Cir #413 Tan wire. O2 Sensor ground. LH rear cyl head.
G107 Cir #450 Blk/Wht. ECM harness componets Ground. LH rear cyl head.
G108 Cir #551 Tan/wht ECM term D1, ground. LH front of engine. Fwd intake bolt.
G109 Cir #150 Blk. Main ground for Inst Panel harness. LH front of engine. Fwd Intake bolt.
G110 Cir #1 Ground strap. Rear of LH cyl head.
G111 Cir #1 Ground strap. Sheet metal screw to firewall.

In all the discussions regarding "check the grounds", I've never seen a description of what each one is. Here they are. Vault?.
Click to expand...

13Pelle said:
syclone_ecm_wiring_diagram1.jpg


syclone_ecm_wiring_diagram2.jpg


syclone_ecm_wiring_diagram3.jpg
Click to expand...
 
fivetodrive

fivetodrive

CRISPY
Re: Ground wiring

Thanks for the 3bar and also posting that pdf! Nice to have on myphone while working on the truck!

Heading out to the yard this morning to get some wiring that is missing!

Also to look for a red interior piece for Dave... (crossing my fingers)
 
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