Posted: Oct 18 2008 at 3:39pm | IP Logged
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it senses the amount of oxygen levels in the exhaust. The ECU uses this information to determine if the engine is running lean or rich.
Sounds to me like the dealers are on the hunt for what exactly is wrong with your truck as well. Feel lucky it's under warranty. If I had to pay for a CAT, and turned out it was just a bad 02 sensor, i would knock the technician across the shop.
__________________ Fight back this year, do your Tax Return in Roman Numerals.
05 Toyota Tacoma X-Runner
90 Nissan Maxima SE
12 Nissan Xterra S
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