O2 sensor difference question
12-29-2017, 08:37 AM
#1
Thread Starter
Join Date: Dec 2017
Location: Ohio
Posts: 1
O2 sensor difference question
My car (04 gt long tube and high flow cats) has been throwing o2 sensor codes for awhile now and I'm trying to figure the best replacement sensors. I've found 2 different styles of o2 sensors and everywhere I look seems to say their interchangable. Upstream or downstream. Just wondering if one is better than the other to avoid these codes. I've attached photos of the 2 styles. Thanks
12-29-2017, 02:40 PM
#2
4th Gear Member
Join Date: Nov 2009
Location: SoCal
Posts: 1,826
What particular codes are you getting? Please post.
O2 sensors can and do fail, but not as often as most people jump to the conclusion of "O2 sensor dtc = replace sensor(s)". Truth is, most of the time these sensors are just doing their job and the problem lies elsewhere.
You mentioned longtubes.... Have you had any tuning done to compensate for sensor relocation? This is a necessary thing. The sensors have been moved 12" to 18" away from their original physical location and that absolutely does affect their operation. If you have not installed a tune to the PCM for this change you've made, expect the next set of sensors to have the same problem.
O2 sensors can and do fail, but not as often as most people jump to the conclusion of "O2 sensor dtc = replace sensor(s)". Truth is, most of the time these sensors are just doing their job and the problem lies elsewhere.
You mentioned longtubes.... Have you had any tuning done to compensate for sensor relocation? This is a necessary thing. The sensors have been moved 12" to 18" away from their original physical location and that absolutely does affect their operation. If you have not installed a tune to the PCM for this change you've made, expect the next set of sensors to have the same problem.
12-29-2017, 11:48 PM
#3
3rd Gear Member
Join Date: Jul 2017
Location: AZ
Posts: 849
What particular codes are you getting? Please post.
O2 sensors can and do fail, but not as often as most people jump to the conclusion of "O2 sensor dtc = replace sensor(s)". Truth is, most of the time these sensors are just doing their job and the problem lies elsewhere.
You mentioned longtubes.... Have you had any tuning done to compensate for sensor relocation? This is a necessary thing. The sensors have been moved 12" to 18" away from their original physical location and that absolutely does affect their operation. If you have not installed a tune to the PCM for this change you've made, expect the next set of sensors to have the same problem.
O2 sensors can and do fail, but not as often as most people jump to the conclusion of "O2 sensor dtc = replace sensor(s)". Truth is, most of the time these sensors are just doing their job and the problem lies elsewhere.
You mentioned longtubes.... Have you had any tuning done to compensate for sensor relocation? This is a necessary thing. The sensors have been moved 12" to 18" away from their original physical location and that absolutely does affect their operation. If you have not installed a tune to the PCM for this change you've made, expect the next set of sensors to have the same problem.
Thank you kindly!
12-30-2017, 03:55 PM
#4
4th Gear Member
Join Date: Nov 2009
Location: SoCal
Posts: 1,826
Imp.... I am also aware of the two different terms, flashing and tuning, honestly could not tell you what the difference in implications between the two are though.
As a guess, it may have something to do with the means/methods of tuning changes between OBD-1 and OBD-2 systems. Then again, it's been a while but I've also heard of handheld tuning devices referred to as "flash tuners".
As a guess, it may have something to do with the means/methods of tuning changes between OBD-1 and OBD-2 systems. Then again, it's been a while but I've also heard of handheld tuning devices referred to as "flash tuners".
12-30-2017, 04:01 PM
#5
4th Gear Member
Join Date: Nov 2009
Location: SoCal
Posts: 1,826
OP tuning changes, if necessary anyway, could be accomplished with a handheld device (SCT, Diablo etc) and "custom" tune.... If he already has a tuner, then contact any one of the million places out there to send him a tune file via email which would then be downloaded to the device and then from there uploaded to the vehicle PCM. If he does not have a tuner, then buy one from any one of the million places that sells and ships them with custom tuning specific to a given customer's needs.
Next option is dyno tuning. Which is the best way to get a spot-on tune, but also the most expensive option and cost effectiveness for a mostly stock 2V is debateable.
Next option is dyno tuning. Which is the best way to get a spot-on tune, but also the most expensive option and cost effectiveness for a mostly stock 2V is debateable.
Thread
Thread Starter
Forum
Replies
Last Post
Dragonus18
Archive - Parts For Sale
12
10-24-2011 05:41 PM
MustangsX
5.0L (1979-1995) Mustang
13
10-21-2007 09:59 PM