Tech Support Forum - View Single Post

Raylo · 05-04-2008, 03:57 PM

Bud,

The plug wires come out of the opti in 2 groups of four, one on the driver side and one on the passenger side. The driver side wires go to 5371, top to bottom. The passenger side goes 2864 bottom to top. IOW, the wire connecting order for one visual clockwise rotation is 53712864. I have a manual drawing showing all this on my shop wall. If I can remember where I downloaded it I'll link it here later. Oh, before you guys who have never seen an opti have a cow the wire order is NOT the same as the cylinder firing order.

The opti died on my 1994 Camaro (LT1). I think I had hi res and lo res codes IIRC. But it's been a long time. New opti fixed it right up.

One issue is that 94 and older optis are non-vented and are less common and more expensive. The 95+ optis will work if you plumb in the vent lines AND (a BIG and) you have to change the cam over to 95+ since the opti drive dowels are different. When I did my cam job I got a 95 opti for supposedly better reliability. So far so good.

05-04-2008, 03:57 PM	#7 (permalink)
Raylo Registered User Join Date: Feb 2006 Location: Maryland, USA Posts: 292 OS: XP Desktop, Vista HP Notebook, XP Notebook	Re: 94 caprice classic Bud, The plug wires come out of the opti in 2 groups of four, one on the driver side and one on the passenger side. The driver side wires go to 5371, top to bottom. The passenger side goes 2864 bottom to top. IOW, the wire connecting order for one visual clockwise rotation is 53712864. I have a manual drawing showing all this on my shop wall. If I can remember where I downloaded it I'll link it here later. Oh, before you guys who have never seen an opti have a cow the wire order is NOT the same as the cylinder firing order. The opti died on my 1994 Camaro (LT1). I think I had hi res and lo res codes IIRC. But it's been a long time. New opti fixed it right up. One issue is that 94 and older optis are non-vented and are less common and more expensive. The 95+ optis will work if you plumb in the vent lines AND (a BIG and) you have to change the cam over to 95+ since the opti drive dowels are different. When I did my cam job I got a 95 opti for supposedly better reliability. So far so good. Last edited by Raylo : 05-04-2008 at 04:07 PM.