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-   3rd Generation Specific (1993-2002) (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/)
-   -   Why the 3 wire O2 sensor? (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/why-3-wire-o2-sensor-18641/)

Want2race 09-01-01 05:16 PM
Why the 3 wire O2 sensor?
 
I went to advance auto... The had the o2 sensors for the RX-7 for $10... I got 2 :)
But whats the deal? The 3 wire does heat up instantly but the ecu only reads that when the temp is up so there is no point for a stock or near stock rx-7

The part # is 004966 and its made by Bosch!

It works perfectly! My a/f gauge is stable for the first time ever!

f2racer 09-02-01 09:36 PM
The 3 wire is electronically heated. My non-heated Bosch O2 sensor starts reading within 2-3 minutes of starting, so I don't really think that heating is necessary with an RX. In any case, they both work the same way...

CantGoStraight 09-03-01 08:08 AM
O2 sensor
 
Whats the part number for the non-heated sensor ??? Is the number listed a Bosch number or advanced auto number ???

Want2race 09-03-01 08:25 AM
Thats the advanced auto #....

11027 is the bosch number


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