Is this graph reading normal?

[313badbuick]

Please see attached powerlogger graph

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[ScottHeidinger]

Your wideband looks erratic, mine shows a smoother log. I would turn the boost down to what it was when the knock began in your log until you figure it out. 6 degrees of knock at 24 PSI is not a good combination.


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[ScottHeidinger]

Looks like knock began around 14 PSI.


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[ScottHeidinger]

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[Pronto]

WB is messed up...

 

[313badbuick]

WB is messed up...

So I need to change the O2 sensor?

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[Chuck Leeper]

How is the sensor wiring routed? RFI?

 

[ScottHeidinger]

How old is the wideband sensor?


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[313badbuick]

How old is the wideband sensor?


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About 2yrs old

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[ScottHeidinger]

Do you have logs from when it was newer? I’ve heard people say replace the sensor yearly but I’ve been running mine for years. I think it depends on where in the exhaust they are located. Closer to the turbo isn’t going to last very long. Mine is at the end of the downpipe.


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[313badbuick]

Do you have logs from when it was newer? I’ve heard people say replace the sensor yearly but I’ve been running mine for years. I think it depends on where in the exhaust they are located. Closer to the turbo isn’t going to last very long. Mine is at the end of the downpipe.


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Please see attachments

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[ScottHeidinger]

I would expect that will need to be replaced. Mine is mounted at the other end right by the test pipe. Yours is getting a lot of heat there.
Probably time for a new sensor


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[3.8L V-8 eater]

You will need to check your fuel pressure as well...The knock retard happened at the highest boost level so probably is not false knock....Is that chip you have a wide band tracking chip??

 

[Pronto]

Your log should look more like Scott's. If it's always looked like that something is wrong with the wiring or the wb box.

 

[313badbuick]

You will need to check your fuel pressure as well...The knock retard happened at the highest boost level so probably is not false knock....Is that chip you have a wide band tracking chip??

Its 6.1tt wb chip

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[ScottHeidinger]

You probably want to turn off wideband correction until you get it sorted out.


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[313badbuick]

You probably want to turn off wideband correction until you get it sorted out.


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I think the first thing I will try is replacing the sensor

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[313badbuick]

You probably want to turn off wideband correction until you get it sorted out.


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I think the first thing I will try is replacing the sensor

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What is the best sensor to replace my current one?

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[313badbuick]

You probably want to turn off wideband correction until you get it sorted out.


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I think the first thing I will try is replacing the sensor

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What is the best sensor to replace my current one?

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I have a AEM 30-0300 X-Series Wideband Gauge AFR O2 UEGO

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[ScottHeidinger]

Your chip is burned for that wideband?


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