Throwing code P0141 O2 sensor heater circuit
12-10-2007, 11:12 PM
#4
666 Speed
iTrader: (2)
Join Date: Sep 2005
Location: Sinking Spring, PA
Age: 38
Posts: 2,088
Likes: 0
Received 1 Like
on
1 Post
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...
12-11-2007, 09:13 AM
#6
Senior Moderator
Originally Posted by fuzzy02CLS
I would only buy an Acura 02 sensor., Order from dealer online & it's not that much $.(links in FAQ)
12-11-2007, 12:21 PM
#7
Instructor
iTrader: (1)
Join Date: Jul 2007
Location: Ann Arbor
Age: 40
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
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
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
Trending Topics
12-12-2007, 12:21 AM
#8
2003 Satin Silver CL-S
Thread Starter
Join Date: Jul 2007
Location: Denver!
Age: 42
Posts: 124
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by SkillOBskilled
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
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
12-12-2007, 08:24 AM
#9
Instructor
iTrader: (1)
Join Date: Jul 2007
Location: Ann Arbor
Age: 40
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
"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.
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.
Thread
Thread Starter
Forum
Replies
Last Post
Jamus22
2G TL Problems & Fixes
24
06-11-2023 10:08 AM
