Why the 3 wire O2 sensor?
09-01-01, 05:16 PM
#1
Bigger and better things
Thread Starter
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!
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!
09-02-01, 09:36 PM
#2
Senior Member
iTrader: (1)
Join Date: Mar 2001
Location: Bedford, MA, USA
Posts: 379
Likes: 0
Received 0 Likes
on
0 Posts
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...
Thread
Thread Starter
Forum
Replies
Last Post
rgordon1979
3rd Generation Specific (1993-2002)
40
03-15-22 12:04 PM
mulcryant
2nd Generation Specific (1986-1992)
10
09-09-15 05:24 PM
