Random Knock
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Join Date: May 2008
Location: Baldwin Park, CA
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Any ideas on why my knocksense is reporting a knock under unlikely knock conditions? These seem to happen sporadically but I cant seem to get rid of them.
Heres a pic of such a knock event. (Knocks at 8.5psi, 11.4 AFR, 10* , 5200RPM)
![Name: knock-1.png
Views: 40
Size: 12.3 KB](https://www.miataturbo.net/attachments/megasquirt-18/204129d1501249302-random-knock-knock-1.png)
And like 1min later I try to recreate it. No Knock.
![Name: noknock.png
Views: 39
Size: 14.9 KB](https://www.miataturbo.net/attachments/megasquirt-18/204130d1501249302-random-knock-noknock.png)
My MSQ is attached.
BTW this is with meth being injected at > 4psi, and a 2.5" exhaust with no cat.
Any ideas/comments welcome!
Heres a pic of such a knock event. (Knocks at 8.5psi, 11.4 AFR, 10* , 5200RPM)
![Name: knock-1.png
Views: 40
Size: 12.3 KB](https://www.miataturbo.net/attachments/megasquirt-18/204129d1501249302-random-knock-knock-1.png)
And like 1min later I try to recreate it. No Knock.
![Name: noknock.png
Views: 39
Size: 14.9 KB](https://www.miataturbo.net/attachments/megasquirt-18/204130d1501249302-random-knock-noknock.png)
My MSQ is attached.
BTW this is with meth being injected at > 4psi, and a 2.5" exhaust with no cat.
Any ideas/comments welcome!
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matthewdesigns
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10-10-2015 02:07 AM