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Oct 14, 2003 | 02:41 PM

#16

Injuneer

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Joined: Nov 1998

Posts: 71,121

From: Hell was full so they sent me to NJ

Yes. The pre-cat O2 sensors should be switching above and below 450mV about 9 times per second. Readings of less than 100mV to more than 900mV are "normal". If the value was "steady" it would be a problem.

Oct 14, 2003 | 02:55 PM

#17

Hyperspeed97z28

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Joined: Dec 2001

Posts: 3,615

From: Upstate, NY (Albany area)

yes, the one was switching pretty fast....

Oct 14, 2003 | 03:10 PM

#18

Hyperspeed97z28

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Joined: Dec 2001

Posts: 3,615

From: Upstate, NY (Albany area)

The o2 on the left side must be working though as the car is running in closed loop, I'd still like to see what its reading for the mv's....

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