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Old 03-11-2018, 09:09 PM
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CEL galore

Coming up on my annual service luckily as I got the dreaded Emissions Service CEL this weekend, figured maybe I can try and get a jump on a diagnosis, and maybe be able to scope out parts ahead of taking the car in.

All 4 codes popped up at the same time

P2195
P2197
P0171
P0174

A little background, last year about this time I replaced a bad PCV and installed Redpants oil catch can. Also I am decatted and running straight pipes.

Any idea what it could be?
 
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Old 03-11-2018, 09:40 PM
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2195 and 2197 are O2 sensor stuck lean. (bank 1 and 2)
0171 and 0172 are system lean. (bank 1 and 2)

I'll PM you a link to an OBD manual that describes troubleshooting procedures.

Matt
 
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Old 03-12-2018, 05:04 AM
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what's the mileage on the car? You probably need new front O2 Sensors, I had to replace mine with only 30,000km and a lot of people are replacing theirs with 30,000 - 50,000 miles.
 
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Old 03-12-2018, 08:48 AM
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Anyone have a link to replacement o2 sensors? Just hit 30k miles and would like to have these on hand when they need to be done
 
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Old 03-12-2018, 09:03 AM
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I was kindly pointed in this direction for sensors. Hope to get them in the next couple of days.
http://www.ebay.ca/itm/FOR-ASTON-MAR...8AAOSw8d9UxrHN
 
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Old 03-12-2018, 09:53 AM
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These O2 sensors are good up-to 2010.5 when they exhaust system was changed to have 2 Cat systems even though they only list 2008 as the later year as I am running them on my 2009 4.7L
 
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Old 03-12-2018, 06:58 PM
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Originally Posted by handyman2009 View Post
what's the mileage on the car? You probably need new front O2 Sensors, I had to replace mine with only 30,000km and a lot of people are replacing theirs with 30,000 - 50,000 miles.
28,500. But do I have front O2 sensors if I'm catless?
 
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Old 03-12-2018, 07:25 PM
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First, what year is your Vantage... I am sure that you are not catless, you might have the newer exhaust system which has 2 x cats on each side (1 in the header = 200 cells + another one after = 400 cells) I know that a lot of people with that setup remove the secondary cats and maybe that is why you say catless but you still have cats in your headers. if that is your case than those O2 sensors above are not good for you.

you should still have front and rear O2 sensors, they are just closer to the engine than mine. Hope this clear things up for you, AM changed the exhaust around 2010.5 +
 
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Old 03-12-2018, 07:29 PM
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Handyman2009...any codes or problems? I have 09 too but according to the site does not work...
 
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Old 03-12-2018, 10:58 PM
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Are you decatted without an O2 delete tune? That will be your issue.
 
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Old 03-13-2018, 04:21 AM
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Aldv, No problem or codes, I did check with AM Mechanic on the forum before buying them and he said that 4.3 or 4.7 from 06 - 10.5 was the same O2 sensors.
 
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Old 03-13-2018, 08:28 AM
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Originally Posted by handyman2009 View Post
First, what year is your Vantage... I am sure that you are not catless, you might have the newer exhaust system which has 2 x cats on each side (1 in the header = 200 cells + another one after = 400 cells) I know that a lot of people with that setup remove the secondary cats and maybe that is why you say catless but you still have cats in your headers. if that is your case than those O2 sensors above are not good for you.

you should still have front and rear O2 sensors, they are just closer to the engine than mine. Hope this clear things up for you, AM changed the exhaust around 2010.5 +
Originally Posted by Scottiejo View Post
Are you decatted without an O2 delete tune? That will be your issue.
MY2007. The car was decatted, straight pipes put in its place at the same time as the exhaust was put in AND an RSC Tune done.
 
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Old 03-13-2018, 08:38 AM
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on that decat pipe you would still have O2 sensors ?? I don't know much about decat, sorry
 
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Old 03-14-2018, 10:45 AM
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hm i suppose that's possible, it certainly appears that way on the velocityap pipes, i guess i would just wonder why.

http://www.velocityap.com/Aston-Mart...mv8decato2.htm
 
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Old 03-14-2018, 10:53 AM
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I am guessing that if the ECU doesn't see them it throw a code... The good news is all 4 of them are the same and the earlier post is good for you.
 
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