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crazy wb reading

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95tsiawd0330

10+ Year Contributor
124
0
Feb 9, 2012
woodlyn, Pennsylvania
can someone tell me why do i get a crazy wb reading.when i cruise my car my wb gauge boucess around 13ish to 14ish afr and sometimes it will be fine.iam just starting to get piss off with this car.i got so much time,money and reading with this car any advice would help out thats here is a log
 

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can someone tell me why do i get a crazy wb reading.when i cruise my car my wb gauge boucess around 13ish to 14ish afr and sometimes it will be fine.iam just starting to get piss off with this car.i got so much time,money and reading with this car any advice would help out thats here is a log

I'm not sure if the LC1s need to be calibrated like the AEM, i am guessing not because Ecmlink likes the LC1s and that's why they sell them, but have you checked for exhaust leaks around your sensor? weather that be turbo to O2 gasket, or o2 to down pipe gasket. where is your WB located? are you running an open DP with no muffler or cat back?

is there a specific point at where your seeing this "crazy reading" cause at cruise everything looks fine at 14.7-15ish with the occasional lean spike. 13s are to be expected at cruise sometimes. where exactly are you talking about. you do know your WB will never be at ONE specific number while cruising like it should be for WOT right?
 
im not sure if the LC1s need to be calibrated like the AEM, i am guessing not because ecmlink likes the LC1s and thats why they sell them

That has nothing to do with needing to be calibrated or not. Yes, they do require free air calibration. If the OP hasn't done so ever (or at least recently), then please do so.

Either way, I don't see anything totally erratic in that log like Kyle said, so if there's a specific point you'd like us to look at, please point it out.
 
That has nothing to do with needing to be calibrated or not. Yes, they do require free air calibration. If the OP hasn't done so ever (or at least recently), then please do so.

They said it needs less calibrating then the AEM, and they have had the least amount of problems with the LC1 correct?
 
Least amount of problem? I don't think so. There are a ton of reported problems with the LC-1. Once you do get one that works though, they log very accurately in link instead of the AEM's which are all over the map.

Calibration for turbo, daily driven car should be:
-after installing new sensor
-after 3 months of use
-then twice a year or every 10,000 miles (whichever is first)

For race cars, you should do it at least once per race weekend.

I don't know what AEM's recommended calibration schedule is off hand.
 
Least amount of problem? I don't think so. There are a ton of reported problems with the LC-1. Once you do get one that works though, they log very accurately in link instead of the AEM's which are all over the map.

Calibration for turbo, daily driven car should be:
-after installing new sensor
-after 3 months of use
-then twice a year or every 10,000 miles (whichever is first)

For race cars, you should do it at least once per race weekend.

I don't know what AEM's recommended calibration schedule is off hand.

As far as i know they dont have a recommended calibration schedule, at least mine didnt come with any documentation on it. I'd calibrate once a month personally or less. :)
 
they said it needs less calibrating then the AEM, and they have had the least amount of problems with the LC1 correct?

AFAIK the AEM wideband cannot be user calibrated which is a major downfall on its part IMO. The few good things that I personally liked about it over the LC1, the new MTXL wideband has minus auto dimming from a photocell.

Yes, the LC1/MTXL controller is much easier to setup on Link than the UEGO.



I agree with Brian, I don't see anything that stands out. I would suggest putting your coasting offset value to 190-200 since your idle is at 900rpm.

Everything seems fine to me for the idle. If the issue occurs during cruise, then I would get a good cruise log with the issue your are trying to address.
 
AFAIK the AEM wideband cannot be user calibrated which is a major downfall on its part IMO. The few good things that I personally liked about it over the LC1, the new MTXL wideband has minus auto dimming from a photocell.

Yes, the LC1/MTXL controller is much easier to setup on Link than the UEGO.



I agree with Brian, I don't see anything that stands out. I would suggest putting your coasting offset value to 190-200 since your idle is at 900rpm.

Everything seems fine to me for the idle. If the issue occurs during cruise, then I would get a good cruise log with the issue your are trying to address.

you can calibrate the AEM in link for sure. brian even has a video on it. as does gofer.
 
you can calibrate the AEM in link for sure. brian even has a video on it. as does gofer.

I think you're confusing calibrating the sensor to configuring the signal in ECMlink.

You can calibrate the LC-1 by pulling the sensor out of the exhaust and pushing a button. You can also configure how the input signal is read in ECMlink.

The AEM comes individually calibrated and doesn't have the free air calibration option that the LC-1 does.


And I think you're confusing me with Brandon (guy other than Corey who has the config video for AEM wideband in link).
 
I think you're confusing calibrating the sensor to configuring the signal in ECMlink.

You can calibrate the LC-1 by pulling the sensor out of the exhaust and pushing a button. You can also configure how the input signal is read in ECMlink.

The AEM comes individually calibrated and doesn't have the free air calibration option that the LC-1 does.


And I think you're confusing me with Brandon (guy other than Corey who has the config video for AEM wideband in link).

OHHHH yeah, see i wouldent know that because i have the damn aem. :( yeah oops, i get things confused often enough sorry about that.
 
nobody sees how the wb line is real gitterey or is it fine to look like that????? when iam in my car just drivin it easy my gauge is going to 13 to 14 afr its in the log when iam on my throttle easy and yes i have calibrated my sensor and its the mtx-l if you scoll down to when i give it gas you will see it going in the 13ish afr thank again.....
 
nobody sees how the wb line is real gitterey or is it fine to look like that????? when iam in my car just drivin it easy my gauge is going to 13 to 14 afr its in the log when iam on my throttle easy and yes i have calibrated my sensor and its the mtx-l if you scoll down to when i give it gas you will see it going in the 13ish afr thank again.....

it is prob going richer when you GIVE IT GAS... everything looks normal. if you have a specific spot in the log, tell us the number of seconds in you are talking about.
 
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It's really just in the tuning. Your afr will cycle up and down to maintain stoich ratios while in closed loop.
 
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