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A/F gauge 700 1989

Ok, as per suggestion I'm gonna attempt to hook up my A/F gauge tomorrow. I was looking it over and have seen in numerous places that I "need to hook up the gauge to the green wire coming off the o2 sensor"

Well I've got 3 wires, none of which are green. One black and 2 white. The black one goes behind the engine to the firewall, and right about at the distributor, it attaches to a green thick wire via a white pop on connector, then disappears behind a shroud running along the top of the firewall around the hood seal.

I'm pretty sure I shouldn't cut into that green wire, looks expensive.

Also, I was going to install the timing gear BUT there's no timing marks on the backplate to go off of. I got the crank pulley lined up with it's timing mark, but there's nothing to line the cam gear up to. Which way should the cam gear mark be facing? directly up (12:00 on the o'clock scale) or right (3:00), or in neither? It seems the guy that I bought the car from didn't bother installing a new plate to replace the shattered one that sits there now.

Ryan








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A/F gauge 700 1989

Just be careful with the splice - you don't want to splice it in too close to the sensor itself because the wire is shielded to protect it from the extreme heat. Also, you should try and solder the splice if at all possible to ensure a good connection.
-Dave
--
1994 850 Bone Stock, 1988 745t a work in progress . . . http://communities.msn.com/Daves745tVolvoSite








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A/F gauge 700 1989

The 2 white wires are for the O2 sensor heater element, the black wire is the sensor output lead.

Ian
Volvord
http://www.telusplanet.net/public/gilesij/Volvord/








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A/F gauge 700 1989

You need to splice into the black wire before it turns into the green co-ax wire.
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