New MAF + 4 New O2 Sensors = WOW!

[xclusivecar]

I posted on this before due to the problem I was having with all 5 of the same sensors. First the MAF, and then one by one all 4 of the O2 sensors would give codes. I would have replaced them all at once but my extended warranty covered everything and as such I had to wait as each one caused a code. This happened about every other week until all were replaced. MN had a great link a while back about O2 sensors and the moral of the story is that these do degrade over time and when one goes or has a few miles on them you should replace ALL OF THEM at once. It costs a bit, but man it does make a difference. New life!!!

[ddb]

xclusivecar:

I'm glad you had an extended warranty that covered all of the sensor failures! Having to deal with each one separately is kind of a pain, but I would have done the same if I had a warranty.

How many miles did you have when the problems began?

Thanks,

ddb

[xclusivecar]

Originally Posted by ddb

xclusivecar:


How many miles did you have when the problems began?

Thanks,

ddb

Problems started at 49,000. I now have 58,000 trouble free miles on a car I use 50+ miles per day/everyday! Besides the sensors, this has been one of the most realiable everyday cars I have had! going on 3 years and used through Chicago winters too!

[CJ_Boxster]

How much less gas do you think you use now when compaired to having the old MAS and O2's?

[ddb]

Originally Posted by CJ_Boxster

How much less gas do you think you use now when compaired to having the old MAS and O2's?

CJ,

I did a 180 mile round trip after replacing the parts but failed to pay the fuel mileage any attention. I hadn't noticed poor fuel mileage prior to replacing the parts. It wasn't uncommon for me to get over 30 mpg on the highway. I typically drive slightly over the speed limit with the cruise control on whenever possible.

It will be great if my fuel mileage improves, if it doesn't, the engine running better is reward enough!

ddb

[larez2]

ddb, thanks very much for the explanation.

I'm about to replace all 4 of my o2 sensors and I'm curious if anyone has used universal replacements (made by Bosch) rather than OEM (also made by Bosch). I'm told the sensor itself is identical, but the difference is the universal replacement doesn't come with the connector.

The universal replacements are about $30 less each and require that I use the existing connector. I just have to splice the new o2 sensors into the existing connector. My existing connectors are in good condition.

Anyone ever done that? Opinions?...

thanks,
Larez2