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BeckyD @ James Martin Chevy


View Poll Results: How long before your wideband sensor failed?
One week. 1 20.00%
One month. 0 0%
Two months. 1 20.00%
Six Months. 0 0%
One year. 0 0%
Longer than one year. 3 60.00%
Voters: 5. You may not vote on this poll

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Old 04-02-2021, 11:55 PM   #1
NA18CamaroSS
 
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Angry AEM Wideband Failure

Quick poll: How long has your wideband sensor lasted before it failed?
My sensor failed approximately six weeks after install. It's still reading, but it's accuracy is toast. At idle when the car was in closed loop it would fluctuate between about 15.5 and 14.6. Now it's reading between 17:1 and 14.5:1 at idle. Going full throttle it's going as rich as 8:1. Ordered a new Bosch LSU 4.9 sensor for $35. I do get a ton of water in my exhaust when the car is cold, so I'm guessing that is what killed the sensor.
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Old 04-04-2021, 12:06 AM   #2
Baddawg53
 
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There's not an option for it not failing so I picked over a year. Mines on over two years old and still going strong. At least 20k miles. Probably just jinxed myself here ...
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Old 04-04-2021, 07:20 AM   #3
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Quote:
Originally Posted by NA18CamaroSS View Post
Quick poll: How long has your wideband sensor lasted before it failed?
My sensor failed approximately six weeks after install. It's still reading, but it's accuracy is toast. At idle when the car was in closed loop it would fluctuate between about 15.5 and 14.6. Now it's reading between 17:1 and 14.5:1 at idle. Going full throttle it's going as rich as 8:1. Ordered a new Bosch LSU 4.9 sensor for $35. I do get a ton of water in my exhaust when the car is cold, so I'm guessing that is what killed the sensor.
How did you install the sensor? If it’s not clocked correctly (see attached) then you could get premature failure.
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Old 04-04-2021, 09:35 AM   #4
NA18CamaroSS
 
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AEM

The sensor is mounted in the left bung of the ARH X-Pipe.
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Old 04-04-2021, 09:59 AM   #5
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Quote:
Originally Posted by NA18CamaroSS View Post
The sensor is mounted in the left bung of the ARH X-Pipe.
Clocking position per the AEM instructions...?
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Old 04-04-2021, 10:19 AM   #6
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I had ARH weld an extra bung for the Wideband.
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Old 04-04-2021, 10:43 AM   #7
NA18CamaroSS
 
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Quote:
Originally Posted by Joshinator99 View Post
Clocking position per the AEM instructions...?
It looks to be about 45*, so that seems like it's clocked "greater than 10*".
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Old 04-06-2021, 10:29 AM   #8
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Confirmed. Replaced the sensor and the wideband now functions normally.
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Old 04-06-2021, 03:20 PM   #9
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Does the sensor have to be in the collector or can it be in the catted connection pipes? Just had my headers coated and did not plan accordingly?
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Old 04-06-2021, 05:14 PM   #10
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Quote:
Originally Posted by BruceWayne1LE View Post
Does the sensor have to be in the collector or can it be in the catted connection pipes? Just had my headers coated and did not plan accordingly?
I believe it should be on the connector or at least before the cat.
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Old 04-06-2021, 07:28 PM   #11
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Quote:
Originally Posted by 20Bluezl1 View Post
I believe it should be on the connector or at least before the cat.
Yea it will be before the cat hopefully there is enough room on the connection pipes to do so. I’d love to not Jack up the coating
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Old 04-10-2021, 10:43 AM   #12
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I am on my 5th or 6th sensor in a year's time. I've changed it twice in the last 3 weeks due to a failed sensor that originally worked for about 3 days, but then started bouncing around from 14-27, & then eventually the gauge read "Sens". My bung is at 9:00, so I'm guessing I need a new bung placed between 10:00 & 2:00 so it is angled per the instructions. I called AEM a few months ago when I initially hooked it up, but the gentleman I spoke to there said the angle does not matter, so that is why I never changed it. But I think it's time since I'm tired of changing it out.
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Old 04-11-2021, 08:14 AM   #13
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3years and no failure. Mine is welded in the cat delete pipe on driver side close to the factory o2.

My guess is those with repeated failures have the sensor to far back in the exhaust and they are not getting up to optimal temp... especially with headers.
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Old 04-11-2021, 12:51 PM   #14
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Quote:
Originally Posted by KingLT1 View Post
3years and no failure. Mine is welded in the cat delete pipe on driver side close to the factory o2.

My guess is those with repeated failures have the sensor to far back in the exhaust and they are not getting up to optimal temp... especially with headers.
I plan on moving mine right past where the headers end. Hopefully this will fix my issue.
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