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How can I check the current O2 to see what it's reading?

Also, who makes the OEM sensor? Denso?


Go to http://www.sparkplugs.com and order up a Denso sensor. Should be less than 40 bucks, and when I did the one on my 87, it was identical to the one I took off.

My Truck: 1987 XtraCab DLX 22R 4WD 5 Speed Manual
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"Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson