Can any one help me with some info. I installed xs headers this summer.

 

Well, either you have a bad 02 sensor, or the wires going to it are loose.

 

can i just buy the o2 sensor they sell at checker auto (Kragen to you Cali guys) or should I buy one from the dealer?

 

well you can do whichever you want. If you are good/ok with soldering, then get the cheaper universal one. While if you want a plug and play job, then go dealer but be prepared to pay...

 

I would only buy an Acura 02 sensor., Order from dealer online & it's not that much $.(links in FAQ)

 

 

http://www.acuraoemparts.com/delray/...All&vinsrch=no

Get it from there, its a bit cheaper then from a dealer.

I would see if you see a voltage drop across the O2 heater connections. Its very likely that the coil that heats the O2 sensor has failed, resulting in an open circuit and the code. It is unlikely, but possible, that you lost connectivity somewhere upstream. Its worth checking out.

Good Luck

 

Thanks but dont really follow. i took a few years of auto shop in high school and i can change my spark plugs and install some headers but thats about it.. the check engine light stopped coming on.

 

"Testing and diagnosis of the O2 sensor heater and circuit is a relatively simple task. Most heaters are a positive temperature coefficient element, meaning the resistance will go up as the element heats up. In normal operation, the increased resistance of a hot sensor will naturally limit current flow in the circuit. Use a digital multimeter to check the sensor heater element for continuity. Exact heater resistance specifications may vary depending on the vehicle and sensor location. Heater element resistance should be about 4 to 7 ohms for a sensor at ambient temperature. Expect somewhat lower resistance values for FLO type sensors.

Another fundamental diagnostic test is checking the vehicle's wiring harness for power and ground to the O2 sensor heater. Take into account that PCM-controlled heater circuits may require the engine running before the circuit will be powered up. Connecting a 12-volt test light between the power supply and ground can determine if the heater circuit is operational. Some technicians prefer to check heater circuit current flow using an ammeter. To measure current flow, connect a digital multimeter in series between the vehicle wiring harness and the sensor heater. This testing method ensures proper heater and circuit performance throughout the temperature range of the sensor. Amperage values can be from approximately 1.5 amps at ambient temperature to 200 milliamps at full operating temperature. "

http://www.asashop.org/autoinc/dec2002/mech.htm

This way you can figure out if its the O2 sensor or the circuit thats at fault.