PDA

View Full Version : o2 sensor help?

JohnnyB
03-05-2007, 08:06 PM
When I purchased my 03 MazdaSpeed it had aftermarket exhaust and I have since upgraded the exhaust and have a high-flow cat. I never had a sensor that goes into the cat(assuming there was once one, there is a hole that i have since plugged with a bolt?) Does anybody know about how much one of these are and if it is indeed an o2 sensor I am missing.

I have always had an engine light on, but desperatly need to pass my emissons testing in WI.

Thanks alot.
baconbitz
03-05-2007, 08:16 PM
You are missing an o2 sensor. Dont know how much that is going to cost you to buy but it will only take about 10 minutes to put on. The plug for it is back behind the intake manifold.
orng1
03-05-2007, 11:15 PM
What I'm curious about is where did the connector go for the O2?
JohnnyB
03-06-2007, 08:45 PM
If someone could fetch a part number that would be awesome! If not that is fine Im gonna be calling around tomorrow.
blazinrola80
03-06-2007, 11:13 PM
i paid about 65 buks universal. i have another one with plug intrested ?
Velburg
03-07-2007, 12:19 AM
OE at Advance Auto is around $254.00. Universal is about $70...Good luck on emmisions test.
kicknmazdaspd
03-07-2007, 04:46 PM
So does that mean u have two holes plugged because stock there are 2 holes one plugged and one with an O2 sensor.
JohnnyB
03-07-2007, 05:51 PM
Thanks alot for the help, the people on this site have always been great.

As far as me having two holes plugged?.. I must I have only ever noticed 1. But I havent been under there in a little over a year?
JohnnyB
03-07-2007, 05:52 PM
Do you have any complaints about the universal ones?? The price difference is huge.
blazinrola80
03-07-2007, 08:46 PM
universals are preety good 4k no problems and did one of the o2 tirks..im running guttedcats. tok inspection yester day passed with flying colors... like i said i have a spare o2 laying around with oem plug if your intrested.. it hase aobut 8k on it
Kansei
03-07-2007, 08:55 PM
The universal ones are the same quality, the same exact sensors actually.. they just don't have an OEM plug, you'll have to wire up 4 wires. I got mine from oxygensensors.com (I think that is the site address anyway), bought it with the oxygen sensor socket shipped for I think under 70.