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Old 06-30-2003, 11:08 PM
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MikeTangas MikeTangas is offline
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Join Date: Apr 2000
Location: So. Cal
Posts: 4,430
The connection should be under the false wall in the passenger side footwell (good info for a 126, not sure on the 201). The sensor leads will pass through the tranny hump about 10 inches or so back from the front of the footwell. The dramatic drop in mileage is an indicator the O2 sensor has taken a vacation somewhere to the south.

Not sure if your sensor is a 2 lead, 3 lead or 4 lead unit. Those with more than 2 are heated units.
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon least its a diesel

Non illegitemae carborundum.
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