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Old 01-07-2007, 02:22 AM   #11
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All scanner might not call it the same thing. Ma call it KR, Knock, Retarding... something like that..
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Old 01-07-2007, 02:25 AM   #12
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Quote:
Originally Posted by Cheetah
This scanner did not show a KR reading or i was not looking in the right spot

Are the sensors replaceable / easy to get to?
You scanned at idle? I wouldn't expect you to have KR at idle. It would read zero. And if a sensor is bad, it should throw a code and a light. They're front and rear on your block, under the cylinder heads, in the water jacket of the cooling system. They listen through the water jacket.

For the record, Series 1 only has one sensor.

As badnit pointed out, not all scantools will read KR.
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Old 01-07-2007, 02:27 AM   #13
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It was a Snap-ON MT2500 series scanner. It did everything!

I will try and upload the vid from it
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Old 01-07-2007, 02:34 AM   #14
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Timing advance and KR data at idle will tell you nothing. Nor will scanning for KR in cold weather.
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Old 01-07-2007, 02:37 AM   #15
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The car was in the garage and the display showed 64F. Is that too cold for it?
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Old 01-07-2007, 02:37 AM   #16
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yup, mine didn;t have any KR until i got it up above 4K rpms and i only had 1 or 2
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Old 01-07-2007, 02:39 AM   #17
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Quote:
Originally Posted by Cheetah
The car was in the garage and the display showed 64F. Is that too cold for it?
I assume you were IDLING in the garage, and not driving. KR means nothing. You have to be driving, with spurts to WOT in order for it to mean anything, and 64 is way too cold. You may drive in 64 degree air temps with no KR, and still have KR when it hits 90.

Scanning for timing and KR at idle is pointless, and will tell you nothing worthwhile.
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Old 01-07-2007, 02:41 AM   #18
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Yes idiling and not driving. I was trying to think back to WCBF and everthing that was discussed there but to no avenge
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Old 01-07-2007, 02:46 AM   #19
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Don't you still have the stock SC pulley? I wouldn't expect you to have KR issues at all, even in the summer, as long as you run premium fuel.

You only really need to be concerned with KR when you start messing with pulley sizes for the SC.
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Old 01-07-2007, 02:46 AM   #20
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I see we are going to have to spend more time at WCBF07 with our heads under the hoods discussing technicalities.
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