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O2 sensor question

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  #1  
Old 11-26-2018, 01:44 PM
Wesley Lueders's Avatar
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Default O2 sensor question
I'm chasing a couple of codes regarding the O2 sensors. The descriptions are:
Lambda sensor aging tv bank 2
Drive cycle C

Lambda sensor aging tp bank 2
Drive cycle C

So from my research, this means they are basically slow to respond, am I correct in this mode of thought? Does "tv" and "tp" refer to position, as in upstream and downstream, or something different?

Thanks for any wisdom provided,

Wesley
 
Last edited by Wesley Lueders; 11-26-2018 at 01:45 PM. Reason: spelling
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Old 11-26-2018, 01:56 PM
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Most times it's not the o2 but vaccum leaks fuel purge valve bad exhaust leaks
perform a smoke test and get a new Hyundai fuel purge valve before you go spending money on o2 sensors
 
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Old 11-26-2018, 02:26 PM
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Thanks for the advice! Since it's only on bank 2, I've looked and listened for exhaust leaks on that bank, with nothing found. If it were a part of the EVAP system, wouldn't I have those codes on both banks?
Plus, does any one know what the "tv" and "tp" refer to? I can graph the sensors with my scanner tool to verify, but I'm really curious as to what those two designations mean.

Thanks again for all the wisdom!
Wesley
 
Last edited by Wesley Lueders; 11-26-2018 at 03:14 PM. Reason: added content
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Old 11-26-2018, 06:07 PM
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Well you can buy the o2 sensor cheapest place is rock auto however I still strongly advise what I said above. Smoke test the vaccum system and exhaust and replace your fuel purge valve. All cheap solutions
 
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Old 11-26-2018, 06:08 PM
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The fuel purge valve will effect everything.
 
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Old 11-26-2018, 07:38 PM
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Read this: https://landroverforums.com/forum/di...e3/#post671009
 
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Old 11-27-2018, 01:35 AM
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Purge valve...everything from o2 sensor codes, vacuum leaks (massive and small), misfires, etc. Dorman purge valve #911-800 or a Hyundai purge valve.
 
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Old 11-27-2018, 09:28 AM
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I have been chasing a similar issue. I have replaced the Hyundai purge valve a few months ago, i know it could still be bad.

I sprayed carb cleaner all over, the junctions, seals, etc, no movement.
My codes are P0101, P0172, P0175

Will try to find someone to do a smoke test, there are instructions for a home version, but at this point for the money I would rather have it done.
 
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Old 11-27-2018, 11:16 AM
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Check mass airflow sensor (do not spray with contact cleaner, use mass airflow sensor cleaner). Then check coolant temp sender, and check to see if thermostat is stuck open. Your issues sound like MAF sensor issues, but can sometimes be mid-diagnosed and related to cooling system.
 
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Old 11-28-2018, 05:32 AM
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Default Maf
Originally Posted by Frtpilot
Check mass airflow sensor (do not spray with contact cleaner, use mass airflow sensor cleaner). Then check coolant temp sender, and check to see if thermostat is stuck open. Your issues sound like MAF sensor issues, but can sometimes be mid-diagnosed and related to cooling system.

thanks for response, I have cleaned the maf, no luck. I have ordered a new MAF this week, Bosch, will see if that's my fix.

the o2 sensors appear to work by all verything I can read.
 
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