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Re: Catalytic Converters, A/F and Oxygen Sensors
Posted to Technical Theory Forum on 3/8/2004 7 Replies

Couple of things:

1. This is a system with the Totyota current-mode lambda sensor upstream of the CAT. The sensor is biased with about 3.30 volts by the ECM, and the ECM monitors current to determine if the mixture is rich or lean. It does not switch - volta... Login to read more.

7 Replies Received (View Replies)