Could anyone post pics/diagrams of how the vacume lines are supposed to run on an 85 lg4. Also, what wires are supposed to connect to the back of the passenger side head other than the ground strap. I think I can figure out most of the wiring, but it has been about a year since this thing has been put together so my memory is a little foggy on the vacume lines.

Ben

 

you should have a under hood decal with the hose routeing. lot of manuals have good pics.

 

Is this a Federal, California, or Canada vehicle? Vacuum routings vary depending on the model.

This is a routing for all Camaro 'G' and 'H' engines for Federal and California emissions:



This is for Canada emissions:

 

It is an Illiniois car. Is one of those diagrams correct for what I I would need? I will also look at the hood one.

Ben

 

Ok, I think I will be able to figure out the vacuum without a problem now. Does anyone know what other wires besides the ground strap are supposed to connect to the back of the passenger side head? Also I think there was one that bolted to the intake manifold.

Ben

 

The ground strap should be it. The only other thing I had bolted there was the bracket for the AIR injection tube for the cat.

 

There should be a large, flat braided ground strap, and probably a ground for the EGR solenoid, choke heater, etc. that would be smaller.

 

Right, there is a ground from the ECM harness that goes there. The ECM harness has 2 ground points: one at the water outlet, and one at the back of the pass side head. IIRC the blower motor ground also goes to the back of the head. So, you should end up with the braid, plus a large (#14 or so) black wire, and a small (#18) black wire. IIRC there was a bolt that bolted the AIR tube in place, and another bolt that went into one of the other holes for the grounds.