Amazing what a new oxygen sensor can do

[GHEN]

It is like the car has a new lease on life! Everything is much smoother, no more gasoline smell on revs over 3.5K, hesitation on acceleration is gone.

Best $ I've spent on this car so far.

GHEN

[Tom944]

Great news. I too have an 87. How many miles when you changed it? I only have 45,000 miles.

[John_AZ]

Tom,

GHEN will give you his mileage but Bosch has a 60K change interval on O2 sensors.

Bosch - Oxygen Sensors

But this number is only a reference.



The new sensors have improvements to the tip:

Bosch universal interchange with "Posilock" connector


Old O2 sensors compared to new--new on the bottom--old on the left---old but new replacement on the right:



At 45K you should be OK by the book. Only a visual check will confirm.

GL
John

[Gawernator]

Hmm, if I passed smog though, wouldn't my O2 sensor have to be okay? I too sometimes get a gasoline smell over 3,500 RPM

[bordin34]

I replaced my O2 sensor over the summer and it made a huge difference. My stumble off idle was gone and in general the car runs better.

[GHEN]

Hi Tom,

My car has 87K on the odometer, and since the O2 sensor was fused on with rust I assume it was original.

Gawernator - Based on my research I believe you can have a bad O2 sensor and still pass emissions so don't trust smog, as John said pull it (easy or very difficult depending on rust) and check it. Clark's Garage has a good article on testing.

GHEN

[Tom944]

John, thanks for all the information. I'll take a look at it next summer. Getting ready to put it away for the winter now. I can't believe it snowed yesterday while I was raking leaves!

[Gawernator]

Snowed? I have a high of 81° F today lol