I did 2 bottles, but still the p0420 code is on. I get around 26-7 mpg on my 2000 honda civic which has typically has 30 mpg.Is it o2 sensor?
57433
I don't know the sensor codes either but our Honda pilot took two bottles and premium gas before the light went off. I also know that the light goes off when you put a new battery in but it may switch back on. Try premium gas from a good company. It's expensive but it finally turned our light off and we passed.
848534
There 2 places where the oxygen sensor is installed/located. Upstream and downstream. You have to check with your mechanic which one is not functioning. It happens to me also and I found out that it's the downstream which is no longer working. The upstream is just fine as it was the one replaced. Normally, it should be replaced both at the same time.
2122372
You need denso 234-9040 fuel ratio sensor and 234-4797 oxygen sensor (honda accord 2006 4 cylinder)
1812063
Need to know the make and model and engine type of the car to answer this question. Are you asking about bank 1 vs bank 2, or are you asking about upstream vs downstream? Go to the Denso web site to see what sensor you need. http://densoautoparts.com/find-my-part/vehicle-selection
1060073
This sensor is the front sensor before the catalytic, if this is what you need, phone your Honda dealer and give them your vin number and they will tell you the sensor needed for your car, if they say its 36531PLR003 them it will work for you. I put this one on my 2004 civic si with 1.7 litre engine and it worked ,no more engine light. Good luck.
620807
That part number is for 1997 Honda CRV. It is the upstream sensor which is before your catalytic converter. Please check to make sure that it the one you need. The post catalytic oxygen sensor is part number 234-4098. Hope this helps.
2265900
I had codes for oxygen seasors and misfires. I replaced them with new O2 sensors and all I have now is a misfire. My code reader tells me it's 3 cylinders that have a misfire.
444477
This part is for either Bank 1 Sensor 2 or Bank 2 Sensor 2 (the sensor after the catalytic converter). Sensor 1 is the sensor that adjusts the air/fuel mix. It is before the catalytic converter and will likely be a different sensor type. Best to double check first.
1578604
Yes and no. This little unit can produce lots of hho and when it burns it produces oxygen. This could cause your oxygen censor to read too much oxygen I the exhaust and this could cause a check engine light to show. This is not likely if you are not running at full power - and you shouldn't be. You will see your car burn too much gas if you don't fool the O2 censor. I put a Volo chip on my Jeep Commander. I am getting 19-20 mpg now vs 16-18 before. I also installed the the feed into the air intake as close as I could get it. My only gripe is that I have to clean it once a week. Otherwise, it's a very good investment.
251594
Its not wise to replace a Cat unless the exhaust system is properly checked for temperature differences between CAT and engine, then from CAT out. secondly the P0420 code is usually a oxygen sensor code sensor code in some Toyota's therefore I recommend you stop by a auto zone or advance outo or even Oriely's and have them check and confirm this code for you, its free. For the ECM it depends on wheather you want to buy it new or used, for new you can check Toyota, auto zone, advance auto, oriely's or even amazom. For used you can check a junk yards like pull apart, wrench it, and others for a used ECM. I hope I was of some help to you.
1781281
Is there an O2 sensor on the pipe that the fuel module connects to? It should work perfectly as it does on my Yamaha Raider, and I have similar modifications.
863466
Your car will often throw a code that results in a check engine light. I've had O2 sensors last 150k+ miles on a 1997 Integra and over 200k miles on a 1996 Integra. The overall health of your car will impact the life more than anything else; if your car is running rich or lean (too much or too little fuel), the O2 sensor will fail earlier in life.
71386
This is an air fuel ratio sensor. It is only for California emissions. You can not mix the two. Try Denso 234-4626 Oxygen Sensor if it is for a Camry 4cly.
1347026
the one I bought worked great for honda civic DX 2004 that is the one with roll up windows auto 4doorno other info I put it in, check engine light went out and it passed smog 1st timegoogle your car and see if it has the same engine good luck google can fix anything thanks amazon your great!!
1678823
On my car it's on/near the rear exhaust manifold within the engine bay. The 2nd sensor is on the catalytic converter. I bought a new sensor just to be safe when I had this part installed.
863471
My 95 Integra/Acura had done 200,000km before I replaced mine.Fuel economy was really bad driving normally after a full tune,replacing all filters,leads,plugs etc.Replaced O2 sensor and had vastly improved economy straight away.My RPM"s were normal. Mine had no check engine light come on.Dont forget to reset CPU. Still have car as its so reliable.Best of Luck.
1283268
Each vehicle is different in the amount of O2 sensors they have. Could be 1-4 or even more.If you know you only have two, the upstream is before the converter and the downstream is after it.You need to know which is bad before you replace it. Most parts stores can scan you vehicle and tell which one is suspect.