are O2 sensors cleanable?

SuperMazdaKart · Postby **SuperMazdaKart** » Mon Apr 14, 2008 8:34 pm

does it help them last longer or work better if given the occasional clean?

in maybe degreaser, rinsed & air dried before re-installation.

Matty · Postby **Matty** » Mon Apr 14, 2008 9:09 pm

AFAIK, no. though I've heard a blast with a blowtorch might help. It's not like they're that expensive to replace. (just get a generic one and crimp it on to the old plug)

SuperMazdaKart · Postby **SuperMazdaKart** » Mon Apr 14, 2008 9:24 pm

hrm ok thanks. i'm not worried bout any difficulties with changing it, done it twice before already. next one might be a 4 wire just so it starts working straight away on a cold engine though.

irwin83r · Postby **irwin83r** » Wed Apr 16, 2008 9:40 pm

little OT but is there any advantage to running a wide band on a N/A setup?

Matty · Postby **Matty** » Wed Apr 16, 2008 11:33 pm

SuperMazdaKart wrote:hrm ok thanks. i'm not worried bout any difficulties with changing it, done it twice before already. next one might be a 4 wire just so it starts working straight away on a cold engine though.

I had a 4 wire for a while (died after a year) then went back to a 1 wire (Repco generic). It heated just as fast (verified by AFR meter), and for its purpose was just as accurate.

Boags · Postby **Boags** » Thu Apr 17, 2008 11:16 am

irwin83r wrote:little OT but is there any advantage to running a wide band on a N/A setup?

Only if you have an aftermarket ECU.

irwin83r · Postby **irwin83r** » Thu Apr 17, 2008 5:41 pm

Boags'MX5 wrote:
irwin83r wrote:little OT but is there any advantage to running a wide band on a N/A setup?

Only if you have an aftermarket ECU.

i do... but its not in the car just yet.. should i get one and install it at the same time as the ECU?

AB7 · Postby **AB7** » Thu Apr 17, 2008 5:51 pm

irwin83r wrote:
Boags'MX5 wrote:
irwin83r wrote:little OT but is there any advantage to running a wide band on a N/A setup?

Only if you have an aftermarket ECU.

i do... but its not in the car just yet.. should i get one and install it at the same time as the ECU?

X2

Can someone explain the purpose of running wide band on A/F ECU?

Boags · Postby **Boags** » Thu Apr 17, 2008 10:28 pm

Narrow band sensors are accurate over a NARROW BAND of a/f ratios. Specifically; they are acurate around 14.7:1 (stoich). The resolution gets worse the further you are from stoich. A wide band sensor gives you the same resolution over a WIDE BAND of ratios.

I'm sure my terminology is wrong, but you get the idea. The stock ECU can't take the difference, so you can't plug a wide band into your stock ecu. If you have an aftermarket ECU you can use the wideband to tune more accurately. With a turbo, this is a must.

Boags

irwin83r · Postby **irwin83r** » Thu Apr 24, 2008 8:23 pm

Boags'MX5 wrote:Narrow band sensors are accurate over a NARROW BAND of a/f ratios. Specifically; they are acurate around 14.7:1 (stoich). The resolution gets worse the further you are from stoich. A wide band sensor gives you the same resolution over a WIDE BAND of ratios.

I'm sure my terminology is wrong, but you get the idea. The stock ECU can't take the difference, so you can't plug a wide band into your stock ecu. If you have an aftermarket ECU you can use the wideband to tune more accurately. With a turbo, this is a must.

Boags

thanks boags.
so a good idea for a nb8a with cams and ecu?