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bad o2 or no o2 which is worse?
Posted 20 July 2003 - 04:19 PM
Posted 20 July 2003 - 06:42 PM
Posted 20 July 2003 - 07:02 PM
Posted 20 July 2003 - 10:10 PM
I haven't changed my own O2 sensor, but I did on a friend's Jeep when it was completely cold.
Discount Auto Parts sells O2 sensor removal tools which are basically sockets with a large section cut out so you don't ruin the pigtail wire. That allows you to put a ratcheting wrench on it, and a pipe extension, if necessary...
Posted 21 July 2003 - 01:27 AM
but the rear should be as easy if not easier.
Hah, I used a 12" crescent wrench! I was able to jocky it better than an open end-wrench. Slipped it underneath the inner CV joint housing (green in color on my Outback) onto the Old O2, from the rear, passenger side, working above the engine bay. Seems to me I measured the hex body of the new O2 with a caliper, then set the crescent wrench to the caliper. And no, I didn't tighten the new O2 to spec, I don't even know what it is. I just snugged it down good.
I haven't replaced the rear O2 sensor, I see no point as the front one is the more important for the signals to the computer for fuel mixture adjustments - unless someone can tell me different....
Incidentally, I feel the new O2 replacement at 101K miles did make an improvement on the engine performance. A bit smoother and gas mileage gained back 1-2 mpg I lost in the previous 15K miles prior to replacement.
Posted 21 July 2003 - 06:07 AM
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