What does the grounding cable going from the pcv valve to the TB? do?

 

wtf?

pic?

 

You would probably find the answer quicker on the LS1 Engine Tech forum. There is nothing equivalent on the earlier engines.

 

I took mine off over a year ago when installing a catch-can, and it didn't affect anything that I'm aware of .

 

I heard it just for keeping the pcv from freezing in freezing temps. Took mine off after it caused a vacuum leak. Don't need it here in Southern Ca.

 

How did it cause a vacuum leak

 

I broke mine off during my H+C swap. It doesn't affect anything...If you notice, it goes around plastic, so it really doesnt ground anything.

 

If you have a factory PCV valve it's steel and the strap goes around the valve itself so it definitely grounds the valve.

 

It's actually a heat synch to keep condensation from freezing the valve.

 

After chasing my high-rev-gremlin, i discovered that this ground was also causing my vacuum leak. The metal piece that attaches to the rubber boot around that pcv valve, was sort of slicing the boot open. I discovered this after fiddling around the boot and feeling some oil oozing out of the spot where the metal connects to the boot. I just slid it out and unbolted it. Then wrapped the boot with some rubber tabe. No more Vacuum leak.

Thank goodness for this forum. I was worried about having removed it. Not anymore.