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Her car has very low miles. Even on an 80s iroc, old school, o2 sensors didn't go bad that fast. And its uncommon for them to go bad on a honda. I wouldn't change them unless there is a code stored. The check engine light would have come on for engine related issues. (Not body related issues) hence, check engine.
In many cases, it is age and not miles which causes O2 sensors to get lazy. Assuming the car being discussed is 12 to 13 years old and has relatively low mileage; that either means lots of very short trips where the engine never fully warmed up (i.e. rich operations) or spent a lot of time not running at all.
Sounds great, but you could say that on just about every other internal engine part... I would not change the 02 sensors.
Please be my guest to keep reading:
I have Old, high mileage sensors.. works fine from 2005! They have 99,500 miles and probably has another 100,000 left. And I am sure they are "hazy".
I did have a spell of bad gas mileage too. After I did that transmission fluid change, the issue disappeared. (I also changed those clutch switches, but I am not sure that had any effect, so I would do that last on my list above, if at all)
But regarding "hazy O2 sensors".. I think you mean "carbon build-up". All 02's have some black on them. That is how they are designed to operate Normally. They are suppose to get dirty. Like the heads on a car. "Normal".
But if by chance ppeter78 has an access of carbon build up, (which is unlikely in these clean running honda motors) ppeter78 should be able to just get on the highway and blow out what little there might be.
You also have to weigh in the fact that other people on Azine have said the same thing...And I have experienced it. Just get out there and give it hell. reboot the ECM, blend in some redline D4 fluid, and get on it. And make sure that lock up torque converter is engaging. That will KILL gas mileage if it just keeps slipping. If you put a bit of RTF in it, you will be able to tell almost immediately when that higher gear slides in. (Under light throttle acceleration, the engine RPM will drop)
by the way, a funky transmission can cause a performance degradation too.. I just recently discovered that too. I ran a can of Seafoam trasnmission flush in there and did 1 drain and fill. And there is still some left in there.. It's suppose to clean varnishes in the transmission. They say you can leave some in for "conditioning".. so it wont hurt. That's pretty much a "must" because its impossible to get it out once it goes in. So be careful not to add more than 1 can at a time. And I also changed out all 4 shift solenoids. It shifts faster. Runs faster. maybe I should check my gas mileage again? 50? hahaha
Last edited by Chad05TL; Oct 27, 2019 at 12:25 PM.
The point you are missing is, IF there are no codes (yet to be determined), the single most common cause for poor fuel economy is the upstream O2 sensors. Simple fact of life.
The beauty about life is that people can do whatever they want! Feel free to change those O2's!
Hey why not the air filter? It has to get air first, before the 02's can see how the engine is burning....
Wouldnt you check that first, to make sure it is not being starved of air?
The O2's are on the way out.. The air filter is on the way In.
Wouldnt you check the goes-inta before the goes-outta?
By the way, IF there are no codes as you say, then it would be more logical to check the air filter because a dirty air filter will not set a code. Just say'n.
The beauty about life is that people can do whatever they want! Feel free to change those O2's!
Hey why not the air filter? It has to get air first, before the 02's can see how the engine is burning....
Wouldnt you check that first, to make sure it is not being starved of air?
The O2's are on the way out.. The air filter is on the way In.
Wouldnt you check the goes-inta before the goes-outta?
haha
Originally Posted by Chad05TL
By the way, IF there are no codes as you say, then it would be more logical to check the air filter because a dirty air filter will not set a code. Just say'n.
It is a physical impossibility for a dirty air filter to cause poor fuel economy.
But I would not replace the O2's. based on other TL's that have noticed a gas mileage decrease, and there are no codes.
Just say'n
Sorry, none of those links you provided which mention air filters as a cause for poor fuel economy has any basis in reality; read the definitive study by Oakridge Labs.
Do whatever you want, but you will waste your time and money and effort replacing those O2 sensors in this specific case... being a 3rd gen TL, with less than 20k miles, and no codes..
Last edited by Chad05TL; Oct 27, 2019 at 01:45 PM.
Do whatever you want, but you will waste your time and money and effort replacing those O2 sensors in this specific case... being a 3rd gen TL, with less than 20k miles, and no codes..
did you understand what I was trying to tell the OP, "IF" there are no codes, replace the O2 sensor; bad O2 sensors are the single most common cause of a low mileage/no code scenario.
Last edited by horseshoez; Oct 27, 2019 at 02:00 PM.
Hey Look.. I changed my O2 sensors today!! (kidding, duh)
Highway travel here..very light throttle.
Below I had to stop at a stop light after I got off the highway, then drove another mile. Notice time went up and Avg MPH went way down. So this was with half city driving.. Because the Stop, and slower speeds in a lower gear.
Ok so I don't know why last night was the first email I got saying I had a reply.
1 I have never had any codes or check engine lights go off on my car
2. I have had about 4 batteries. No one told me I had to lock my car door if I don't drive my car daily plus my Bluetooth broke 2 times which also killed my battery. My current battery is 6 months old.
3. My car has always gotten horrible gas mileage. I have complained to the dealer since I got the car brand new and they kept telling me my gas mileage will get better once I broke in my engine. Now that my engines broken they're telling me they don't know why I get such poor gas mileage but last week they checked out my car and told me nothing's wrong with it.
4. I always keep my tires properly inflated.
5. I always use premium gas from shell.
6. I always get my oil changed when my car is at 20% of the oil life.
7. I do drive on the freeway I drove 300 miles 4 months ago to go to my grandmother's funeral.
8. My transmission doesn't slip ever. My car drives just fine I just get bad gas mileage.
9. I change the air filter.
10. I have the Acura dealer perform all my service.
11. They did suggest changing my timing belt due to the age of my car. Does anyone know if this is true or not? I called acura corporate and they told me I don't need to change my timing belt till 60000 miles but the dealer is telling me it's a belt not a chain and it can go bad with time not just mileage. My car is kept in the garage at all times.
12. I'm disabled so I don't drive that often maybe once or twice a week.
13. Again I drive my car like a little old lady I don't floor it I coast to red lights.
14. My ECU has been reset several times due to the dead battery I've had to re-enter the codes to the car navigation and radio.
I also agree that acura's should have all the latest and greatest options. Honda currently has something called Honda sight or something like that where the car has cameras all the way around it and if you turn your blinker on the center console lights up to show you what's on the side of your car when you put your blinker on. When I was at the dealer last week I asked Acura why they don't have that and they said they don't know but they should...
Again the only issues I have ever had with my car was my Bluetooth went bad 2 times killing my battery. Then because I didn't drive my car frequently and I didn't lock the door it killed my battery. Now that I lock my car door I don't have that problem anymore. the power steering recall was fixed on my car. My backup camera was replaced. And the aux in for my phone broke and that was fixed. I have never had any major issues with my car my only real complaint is the gas mileage...
You would barely be able to detect if your transmission is slipping because it's actually designed to work that way. That's why nobody really knows what causes the gasoline mileage problem and that's why you have people telling you to replace your oxygen sensors because it's a buckshot for all cars and not specific to a TL. And the picture that horseshoez posted is not from a 3rd gen TL like ours.
And I would not change the timing belt yet
What city are you in?
Also leave your Bluetooth module disconnected it's in the upper center console. It will keep breaking and keep costing you money and keep draining your battery so you got to just let it go ... disconnect it
Nevermind I did not see the miles per hour letters all I see are the kilometers per hour and the colors look really off and lots of scratches so it look like it was an older version but I think you're probably right it's been too long since I've had mine installed I have a 2005 but I updated mine so I must have forgot how bad they looked ... my bad! You have a ton of scratches too.
Originally Posted by horseshoez
Ummm, what makes you say that; the picture I posted above is from my 2006 TL.
Nevermind I did not see the miles per hour letters all I see are the kilometers per hour and the colors look really off and lots of scratches so it look like it was an older version but I think you're probably right it's been too long since I've had mine installed I have a 2005 but I updated mine so I must have forgot how bad they looked ... my bad! You have a ton of scratches too.
Yeah, funny thing, the camera picked up the scratches which I cannot see. I'm guessing the original owner did a lot of wiping of the soft plastic with something a bit abrasive.
Also leave your Bluetooth module disconnected it's in the upper center console. It will keep breaking and keep costing you money and keep draining your battery so you got to just let it go ... disconnect it
My Bluetooth hasn't broken in years It broke twice in the first five years I had it hasn't broken sense. I also have a bumper to bumper extended warranty on my car still with no deductible.
You would barely be able to detect if your transmission is slipping because it's actually designed to work that way. That's why nobody really knows what causes the gasoline mileage problem and that's why you have people telling you to replace your oxygen sensors because it's a buckshot for all cars and not specific to a TL. And the picture that horseshoez posted is not from a 3rd gen TL like ours.
And I would not change the timing belt yet
What city are you in?
I'm in fort Lauderdale Florida. my car does have bumper to bumper extended warranty on it with the $0 deductible sound something is wrong with it it should be covered but the question is what and how does it get diagnosed. I can't diagnose it then the extended Warrantycompanywon't replace it
Well mine never has drained my battery. I'm just going by what all the other masses have said.
Anyone can search " bluetooth drain'" and find all that..
Originally Posted by ppeter78
My Bluetooth hasn't broken in years It broke twice in the first five years I had it hasn't broken sense. I also have a bumper to bumper extended warranty on my car still with no deductible.
Apparently you don't read too well. Looking for the red flag. You wont find it. Nobody will. Now, try rereading what I said.
Unsubscribed
Originally Posted by ppeter78
I'm in fort Lauderdale Florida. my car does have bumper to bumper extended warranty on it with the $0 deductible sound something is wrong with it it should be covered but the question is what and how does it get diagnosed. I can't diagnose it then the extended Warrantycompanywon't replace it
