ok I'm throwing a code 41 which is a oxygen sensor heater if I buy a oxygen sensor is the heater included with the sensor?

 

Yes

 

I know the answer but will not tell you. I will ask you very politely to search this forum or call your parts supplier and ask them.... It really ain't difficult you know.

fs

 

A little bit of warning, if you have a 98 and above accord with a ULEV engine I recommend getting an OEM O2 sensor from the dealer. The aftermarket ones don't seem to work with the ULEV engine. I replaced mine with a Bosch O2 and I still had the check engine light until I replaced my O2 with an OEM one.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SmallzTek &raquo;</TD></TR><TR><TD CLASS="quote">A little bit of warning, if you have a 98 and above accord with a ULEV engine I recommend getting an OEM O2 sensor from the dealer. The aftermarket ones don't seem to work with the ULEV engine. I replaced mine with a Bosch O2 and I still had the check engine light until I replaced my O2 with an OEM one.</TD></TR></TABLE>

OEM = Denso ?

 

I don't know if OEM is Denso but if you have an ULEV Accord get the sensor from the dealer. If you have a LEV Accord I think the aftermarket one's should work.

 

The O2 sensor connector has 4 leads. 2 for the heater and 2 for the signal.
The O2 sensor will work fine without the heater. The heater simply warms up the sensor so that it will transmit usable signals quicker.
This has been a real bone of contention for me. Honda knows the sensor works fine without the heater but they want your service buisness. You see in a well maintained engine that is not burning huge amounts of oil and is receiving the proper type of fuel the O2 sensor will not generally have a buildup a crap that will hinder the operation of the O2 sensor signal.
Basically the O2 sensor will last forever and Honda knows this. So the bean counters sit down and figure out how to make service dollars from a part that won't ever **** up. Particulary when the public is so concerned about emmision standards. They instill fear in you that your car is emmitting unnacceptable levels of pollution so you do and pay whatever it is they want to repair the problem. Basically the same way as president Bush instilled fear in everyone so that they could invade Iraq.
So this is how they do it. The PCM monitors the current flow to the heater to determine whether the O2 sensor is plugged in or not. No current flow means the connector for the sensor is not plugged in or the heater is open circuited. Any heater will eventually burn out and the bean counters know this. So they build in something that WILL break so they get your service dollars.
The PCM ignores the signal from the O2 sensor until the engine warms up. The PCM has a programmed time delay (approx 2 min) before it checks the input signal form the O2 sensor. It then checks these readings and compares them to stored parameters form past vehicle history or programmed parameters. If the signal level is wrong the PCM will set a fault code and ignore the O2 input. The PCM them reverts to stored parameters and bases fuel optimization on past parameters.
What I am getting at is the fact that you don't need the heater. I know because I had a problem with mine. So here is what I did. I checked the sensor and found that I had an open cct in the heater. A friend has the same car as I so when I got an O2 fault I simply went over to his car and measured the resistance value of the heater. I broke open the leads at the O2 sensor and installed an equivalent resistance value in the O2 heater cct. I reset the fault code and re-started my car and voila no fault code re-appeared. The signal levels from the O2 sensor were fine so the PCM used them and didn't set a fault. Living in Ontario we are forced to undergo regular emmision tests. When I had my test the O2 readings came back as normal so I know that my fix worked.
Honda will deny any of this and they are counting on the fact that the masses are ignorant to the way O2 sensors really work. Cars without heaters in the O2 cct work fine.