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YOUR RESEARCHWill I pass TX inspection? Cat/Oxygen sensor failure
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dme is correct
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No successful repair reported for this finding.
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Suspected cause
Changing the O2 sensor is very easy and if the code points to an O2 sensor, most likely the DME is correct.
Will I pass TX inspection? Cat/Oxygen sensor failure
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Leading evidence: 'dme is correct' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'dme is correct' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check engine alarm' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion · Original poster
I have a check engine alarm that's being triggered by an Oxygen Sensor being above the limit at idle.
Will I pass TX inspection? Cat/Oxygen sensor failure
Reset alarm
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Suggestion · Original poster
In the meantime, he reset the alarm but it has since come back on...as we expected.
Will I pass TX inspection? Cat/Oxygen sensor failure
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10 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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I have a check engine alarm that's being triggered by an Oxygen Sensor being above the limit at idle. My mechanic said the car was safe to drive, but I haven't had a chance for him to do some more detailed troubleshooting to narrow it down. In the meantime, he reset the alarm but it has since come back on...as we expected.
Fast forward to yesterday, when I get pulled over for having an expired inspection sticker. My car was laid up with a blown engine when it expired and I just haven't had time to get a new inspection done. Now I have two weeks to get a new inspection done or pay the fine. Court date is 21 May.
If I take the car to get an inspection, am I likely to fail the emissions test? I'd prefer not to have the citation on my record, but I'm also not looking forward to paying for a new sensor/cat installation so soon after putting $15k of engines/parts into the car last month.
As long as the CEL is ON, it can't pass
http://www.txdps.state.tx.us/rsd/vi/.../faq_obdii.htm
Changing the O2 sensor is very easy and if the code points to an O2 sensor, most likely the DME is correct. You can get the O2 sensors from amazon for about $90.
If the O2 sensor code is the ONLY code, most likely the DME is correct and the O2 sensor itself is the problem (barring any wiring issues). Do you have the exact codes?
The O2 sensors are easy to swap out as long as you have the right tools and penetrating oil.
Neiko 03048A 7/8 Inch Flexible Head O2 Oxygen Sensor Wrench - Combination Wrenches - Amazon.com
Neiko 03048A 7/8 Inch Flexible Head O2 Oxygen Sensor Wrench - Combination Wrenches - Amazon.com
TEKTON 47749 3/8-Inch Drive by 7/8-Inch (22mm) Offset Oxygen Sensor Socket - - Amazon.com
TEKTON 47749 3/8-Inch Drive by 7/8-Inch (22mm) Offset Oxygen Sensor Socket - - Amazon.com
The readout read as below:
"P0174 Oxygen Sensing Adaptation, Idle Range, Bank 2 Above Limit"
I hate having to do it, but I'll probably have to take half a day of vacation tomorrow in order to take the car to the shop. On a tight schedule, I'm leery to try to do it myself for the very first time.
P0174 is not the O2 sensor! That code is the DME complaining bank2 is trying to run lean or it's running lean. Could be the MAF, air leak (e.g., oil filler tube cracked), insufficient fuel pressure, etc.
Most likely you would need a shop to troubleshoot and correct this.
I'm in TX and I believe an inspection is about $35? Get it inspected and if it fails they give you a few weeks to rectify the issue without paying more. (Estimating cost and grace time from memory)
So, get it inspected and go from there.
Unfortunately, my court date to show that I got a valid inspection is on the 21st. I don't have a lot of time to play with.
Dropped the car off at the shop on Monday. It was apparently ready for pickup late last night, but I haven't gotten a full report on what the issue was. I'll pick up today, but now the issue is that the onboard computer has been reset. Apparently to pass inspection I will have to have had two full drive cycles of data. Not sure what that entails, but it sounds like I'll have to be doing some driving over the next week!
One mistake owners often make is for this "drive cycle" they assume the car needs to be hammered.
That is not the case.
The drive based on my experience monitoring readiness monitors and such is it involves a cold start, some idle time, then easy driving at reasonable speeds, 35 to 45mph or thereabouts on city/surface streets. After a while you can take the car on the highway/freeway and just drive at a steady speed for a few miles. Afterwards then some more driving on city/surface streets.
The above pretty much describes my 30 mile commute to work every day. Some times this drive would be done after having cleared an error code that had the CEL on. Clearing the error code resets all the readiness monitors to their incomplete state and a drive cycle is required to give the DME enough time and the proper engine operating conditions to complete all the readiness monitor tests.
This is a source reference. Confirm exact model applicability in the original material.
