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Old 08-12-2003, 12:40 AM
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JimF JimF is offline
'94 S500: only 793 sold!
 
Join Date: Mar 2001
Location: San Diego, CA
Posts: 1,925
There's no polarity . . .

to a CH; you can't install them incorrectly.

But you could have a bad wiring harness; they do go bad. Just remove the CH and reset the codes. Wait a short time and re-read them.

Also use an ohmeter to tell if the B10/8 sensor is REALLY open; it should read around 350 ohms or so at 90C apx. If it reads open, or much higher than that, then r&r.
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