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      08-09-2016, 04:46 PM   #1
m3ninja
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Increased emissions

Hey Guys, got increased emissions with a check engine light. Car runs perfectly normal other then the cel. Had a local guy read the code and reset the faults and still getting the increased emissions light. Anyone get same and what was fix for it? Any help greatly appreciated, thanks.
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      08-09-2016, 04:49 PM   #2
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Originally Posted by m3ninja View Post
Hey Guys, got increased emissions with a check engine light. Car runs perfectly normal other then the cel. Had a local guy read the code and reset the faults and still getting the increased emissions light. Anyone get same and what was fix for it? Any help greatly appreciated, thanks.
Please list your mods.
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      08-09-2016, 04:52 PM   #3
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Please list your mods.
just full exhaust

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      08-09-2016, 05:37 PM   #4
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2771 Oxygen sensor dynamic diagnosis before catalytic converter, bank 1
2772 Oxygen sensor dynamic diagnosis before catalytic converter, bank 2

This is usually bad O2 sensors. But, it's rare that both go at the same time. I've replaced 3 of them now on the drivers side since I went catless. I would switch them or get a new one and see if it fixes the errors.
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      08-09-2016, 05:56 PM   #5
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Originally Posted by Haywood View Post
2771 Oxygen sensor dynamic diagnosis before catalytic converter, bank 1
2772 Oxygen sensor dynamic diagnosis before catalytic converter, bank 2

This is usually bad O2 sensors. But, it's rare that both go at the same time. I've replaced 3 of them now on the drivers side since I went catless. I would switch them or get a new one and see if it fixes the errors.
Thank you, I'll give that a try!
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      08-10-2016, 02:30 AM   #6
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Thank you, I'll give that a try!
O2 sensors shouldn't help there, the faults you have are not 2771 and 2772 they are actually 2789 and 278A.

This is probably failing primary cats.

I would replace the low pressure fuel sensor, clear the codes and then see those two return again before doing anything else.
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      08-11-2016, 06:27 PM   #7
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Quote:
Originally Posted by Mike Benvo View Post
O2 sensors shouldn't help there, the faults you have are not 2771 and 2772 they are actually 2789 and 278A.

This is probably failing primary cats.

I would replace the low pressure fuel sensor, clear the codes and then see those two return again before doing anything else.
Thanks Mike! Actually saw another thread with very similar issues and was planning on trying the low pressure fuel sensor first.
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      11-09-2016, 11:35 PM   #8
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Quote:
Originally Posted by Mike Benvo View Post
O2 sensors shouldn't help there, the faults you have are not 2771 and 2772 they are actually 2789 and 278A.

This is probably failing primary cats.

I would replace the low pressure fuel sensor, clear the codes and then see those two return again before doing anything else.
Mike I'm actually getting the 2771 and 2772 fault codes using your BPM diagnostic for the tune.
What do you recommend the fix is?
(You have tuned my car for my full Akra setup up BTW)
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