I think, based on my experience thus far, NGK o2 sensors are better than Denso ones. On the other hand, I'd happily stick a Denso o2 sensor in my Mustang if only for the fact that it's the cheapest one Rockauto sells for that car ($30).
Picky Hondas!
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I just looked up O2 sensors for my 96 Honda V6, and OEM at discount are $200 each! I in no way believe there is anything so special about an OEM Denso O2 sensor that warrants such a price differential if an O2 sensor for a Mustang FROM THE SAME MANUFACTURER is only $30. What [censored]!
Okay gee, this thread has gotten predictable. Let me state, I have ALWAYS used Bosch universal O2 sensors any time I've ever had to replace an oxygen sensor for almost 20 years. I've never, ever had one not solve the problem. Yes, that's including on OBD II applications. This is why I was surprised at the trouble I was having with the Honda. Same with spark plugs. I've used ever kind of spark plug in my cars as well. From Champion to Autolite to NGK to Bosch. Never have I had anything like that make a difference. That's all I'm pointing out....
Originally Posted By: jmac
I just looked up O2 sensors for my 96 Honda V6, and OEM at discount are $200 each! I in no way believe there is anything so special about an OEM Denso O2 sensor that warrants such a price differential if an O2 sensor for a Mustang FROM THE SAME MANUFACTURER is only $30. What [censored]!
Yep, that's the exact thought I had. Now, in fairness, there COULD have been a problem in the connector...and not with the sensor...
I just looked up O2 sensors for my 96 Honda V6, and OEM at discount are $200 each! I in no way believe there is anything so special about an OEM Denso O2 sensor that warrants such a price differential if an O2 sensor for a Mustang FROM THE SAME MANUFACTURER is only $30. What [censored]!
Yep, that's the exact thought I had. Now, in fairness, there COULD have been a problem in the connector...and not with the sensor...
I was at the auto shop today getting my A/C fixed. My mechanic had an '05 Pathfinder on the lift. It only had 40,000 miles on it.
Both of the pre-cat sensors were bad. $300 for two sensors from the dealer! The old sensors that came out had a dark grey tint on the tip.
Why would both of the sensors fail after only 40k?
Both of the pre-cat sensors were bad. $300 for two sensors from the dealer! The old sensors that came out had a dark grey tint on the tip.
Why would both of the sensors fail after only 40k?
Originally Posted By: BrianWC
Yep, that's the exact thought I had. Now, in fairness, there COULD have been a problem in the connector...and not with the sensor...
For $200 they'd better be using mil-spec connectors.
Yep, that's the exact thought I had. Now, in fairness, there COULD have been a problem in the connector...and not with the sensor...
For $200 they'd better be using mil-spec connectors.
No, I mean perhaps the problem with my original o2 sensor was in the wiring or connector and not at the sensor itself. That way, even if I spliced in a new one, it would not have remedied the fault.
Far fetched, I know, but it's the only way I could imagine that replacing with a new vehicle-specific OEM sensor would have cured something that a universal splice in would not have.
Far fetched, I know, but it's the only way I could imagine that replacing with a new vehicle-specific OEM sensor would have cured something that a universal splice in would not have.
Originally Posted By: The Critic
I was at the auto shop today getting my A/C fixed. My mechanic had an '05 Pathfinder on the lift. It only had 40,000 miles on it.
Both of the pre-cat sensors were bad. $300 for two sensors from the dealer! The old sensors that came out had a dark grey tint on the tip.
Why would both of the sensors fail after only 40k?
O2 sensors fail prematurely for a couple of reasons. The most common cause is contamination, either from lead or silicon. Use of unapproved sealant during valve jobs can be bad for the sensors. Sometimes, prodigious use of solvents for cleaning throttle bodies and piston tops may also contribute to early failure.
I was at the auto shop today getting my A/C fixed. My mechanic had an '05 Pathfinder on the lift. It only had 40,000 miles on it.
Both of the pre-cat sensors were bad. $300 for two sensors from the dealer! The old sensors that came out had a dark grey tint on the tip.
Why would both of the sensors fail after only 40k?
O2 sensors fail prematurely for a couple of reasons. The most common cause is contamination, either from lead or silicon. Use of unapproved sealant during valve jobs can be bad for the sensors. Sometimes, prodigious use of solvents for cleaning throttle bodies and piston tops may also contribute to early failure.
Yes, all sorts of chemical cleaners of solvent nature would hurt the O2 sensors, mostly due to precious metal contamination or intoxication.
That's why I only do throttle plate cleaning may once or twice a year; combustion chamber cleaning (via PEA variety, regular dose and no shock dose, Pennzoil Regaine/Chevron Tectron concentrate) about once or twice a year.
I also religiously resort to using only Chevron/Texaco gas or Shell, with maybe 1 to 2 tanks of no-name such as Mirastar/BP every year.
Also ensure that your engine is aging gracefully w/o burning oil and if it does, consider switching to API SM.
So far, I've only had 1 O2 sensor on a OBD-I car becoming lazy after covering in excess of 250,000kms so far (among all the cars I have regular servicing and records). Replaced it with a new Denso and off it goes again.
Q.
That's why I only do throttle plate cleaning may once or twice a year; combustion chamber cleaning (via PEA variety, regular dose and no shock dose, Pennzoil Regaine/Chevron Tectron concentrate) about once or twice a year.
I also religiously resort to using only Chevron/Texaco gas or Shell, with maybe 1 to 2 tanks of no-name such as Mirastar/BP every year.
Also ensure that your engine is aging gracefully w/o burning oil and if it does, consider switching to API SM.
So far, I've only had 1 O2 sensor on a OBD-I car becoming lazy after covering in excess of 250,000kms so far (among all the cars I have regular servicing and records). Replaced it with a new Denso and off it goes again.
Q.
I avoid any throtle body sprays that claim to clean. Why ?
It takes me 15 minutes to remove the throtle body and wipe all the black grimy carbon that builds up with a rag.
I do use Redline Injector cleaner once a year that I bought for $2.40 on closeout from AAP.
It takes me 15 minutes to remove the throtle body and wipe all the black grimy carbon that builds up with a rag.
I do use Redline Injector cleaner once a year that I bought for $2.40 on closeout from AAP.
Well, all I can say is what a difference the new O2 sensor has made in MPG, throttle response, and even idle. I'm not usually one to have "butt dyno" reactions to things. This is certainly an exception, though. I was really ready to trade this thing in based on my last month's experiences with it. Now it drives like new again.
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