 |
 |
 |
|
|
 |
| Search | Car Forums | Gallery | Articles | Helper | AF 350Z | IgorSushko.com | Corporate |
 | | ||
| |
|
| Latest | 0 Rplys |
07-19-2014, 11:48 PM
|
#1 | |
|
AF Newbie
Join Date: Sep 2005
Location: centralia, Washington
Posts: 31
Thanks: 8
Thanked 0 Times in 0 Posts
|
Heated O2 Sensor
Question: What should the ohms be on a good HO2S?
On my Suburban, I have 4.5, but on my 2000 Montana, 3.4L, I have 5.9. Mike |
|
|
|
|
07-20-2014, 01:06 PM
|
#2 | |
|
AF Fanatic
Join Date: Jul 2011
Location: Worcester, Massachusetts
Posts: 5,017
Thanks: 70
Thanked 618 Times in 610 Posts
|
Re: Heated O2 Sensor
It might vary by different O2 sensors, but as long as you are getting a good reading I would think it's ok.......13 volts(car running) dived by 4.5 ohms equals 2.9 amps which is well below the 10 amp fuse.....
What problem are you having? Is there a code set? |
|
|
|
|
|
07-20-2014, 06:12 PM
|
#3 | |
|
AF Newbie
Thread starter
Join Date: Sep 2005
Location: centralia, Washington
Posts: 31
Thanks: 8
Thanked 0 Times in 0 Posts
|
Re: Heated O2 Sensor
Code is P0137
|
|
|
|
|
|
07-20-2014, 10:49 PM
|
#4 | |
|
AF Fanatic
Join Date: Jul 2011
Location: Worcester, Massachusetts
Posts: 5,017
Thanks: 70
Thanked 618 Times in 610 Posts
|
Re: Heated O2 Sensor
You do realize that this is a code for the O2 sensor, AFTER the cat, not BEFORE?
This code states the voltage is staying low......O2 sensors have two circuits, a heater circuit and a sensing circuit...measuring resistance has only to do with the heater circuit.....all the heater circuit does, is get the sensor to start operating sooner from a cold start......so resistance has nothing to do with this code....you either have a bad O2 sensor, or an opening in the harness to the sensing circuit of the sensor.... |
|
|
|
|
|
 |
POST REPLY TO THIS THREAD |
 |
|
|
