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CEL P2246 - Help!
Hey guys,
New to the mps scene.
Recently installed a Cpe dumppipe (with cat) and autotech hpfp internals into my 2011 MS3.
I had to replace both o2 sensors during install of the dump. Im currently running a Cobb stage 2 OTS.
I now have a P2246 ''front HO2S sensor reference voltage circuit high input' which continues to re-appear after clearing...
Car seems to run fine... Any help, suggestions or anyone who can fix it would be greatly appreciated!
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custom tune!! from purple drank,freektune etc
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I contacted Ryan from PD, told me id have to resolve the CEL before a tune..... i was hoping a custom tune would fix it
Wiring looks fine, sensor is new also....
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Oem sensor?
Sent from my Nexus 6 using Tapatalk
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I didnt use oem sensors....
The secondary sensor didnt throw a cel (which i hear is more common due to the increased flow) so i'd assume the primary is also okay......
Is using an oem sensor mandatory?
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No idea, but this thread suggests there can be problems with some non-oem ones http://www.ozmpsclub.com/forum/diagn...-downpipe.html
Doesn't look like a common cel (yeah, 2nd o2 cels are super common). Since its pre-cat, it sounds like an actual problem with the sensor than with the downpipe. All the trouble shooting I can see is about checking wiring of the sensor (e.g. https://euroesi.mazda.co.jp/esicont/...2b7813300.html) and since they were replaced, that is where I would start.
Sent from my Nexus 6 using Tapatalk
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UPDATE: cel fixed. Swapped aftermarket primary 02 sensor with an OEM sensor. Code cleared. Thanks for your help guys!