You'll have to forgive me here because I only have '87 and '91 Factory Service Manuals at my disposal, which don't quite answer some questions I have about my '86 GLH Turbo...

1. Knock sensor....is it a solid black wire? I have reinstalled the original underhood wiring and it happens that the knock sensor connector was cut off at some point. I see a solid black wire that was cut and can only imagine it must be the knock sensor... it comes up through the main harness and is cut right near the fuel rail sub-harness connector, so the black wire appears to be in the right location.

2. O2 sensor...beings that this car is an '86 model year, it uses a one-wire O2 sensor. It also appears to have the connector cut off. I see a black wire with a green tracer that has been cut. Is this the O2 sensor wire? After seeing this I think now may be a good time to do the 4-wire sensor mod..



I will likely have more questions later as I get closer to having this car roadworthy.