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Best 02 sensor

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1baad6

New Member
Joined
Aug 27, 2007
Messages
62
Just wondering whats the best 02 sensor to use with race gas,that will last and still give accurate readings,thanks...
 
i had good results with the bosch leaded 02 sorry i forgot the part number maybe someone can chime on the part number
 
Hi,
A Denso is always a good choice. I think they put a little more into their base line sensors. At least,that is my perception.A heated sensor is pretty easy to install,too.
 
Denso works good for me,they last longer than the ac/delco with race gas and cheaper.
 
Denso will hold up better to lead (from what I hear) but its not a very active sensor. Bosch O2's are FAR more active and can deliver more o2 data, much faster to the computer. People havent had much luck with Bosch's and lead, but theres no telling how carefully they were installed. You have to treat every o2 like a thin sheet of glass when installing it because thats basically what you're dealing with. Just tapping it a little too hard with a wrench will affect how active it is. I had a new denso in mine when I bought the car, but had to replace it within 1000 miles because it was just dog slow on the o2 crosscounts. I threw in a Bosch and it started cycling 0-255 within 10-15 seconds, vs 90ish with the Denso. A faster sampling rate means the computer has faster control over fueling when conditions change. Its 50,000 miles later and I still have the same sensor in there. I use alky, so I dont have to worry about lead.
Another good thing is that its not even a heated sensor, but it's actually MOST active when the engine is cold. Cycles in like 8 seconds. It conducts heat to the element so fast that it doesnt need to be pre-heated.
 
My bosch one has worked well with leaded gas. Probably had 100+ gallons of 110 go through and still reads accurately.
 
My bosch one has worked well with leaded gas. Probably had 100+ gallons of 110 go through and still reads accurately.

Thanks for chiming in. Ive had a feeling the failing Bosch's were maybe due to rough installation than the sensors themselves. I love mine. Whats popular isnt always right.
 
Thanks for all the info,do you guys have a part# for the denso or bosch,or who sells them? thanks alot...:biggrin:
 
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