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Old 09-17-2012, 10:53 PM
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ztom ztom is offline
I gotta have more cowbell
Location: Thousand Oaks CA
 
Join Date: Sep 2007
Posts: 838
Mein Auto: 1997 528i
Update..
..I replaced the knock sensor & it solved the stumble. During the time I had disconnected it I only got a cel once, strange. The car definitely when into limp mode, poor acceleration from no timing advance. I didn't need to remove the intake manifold to replace sensor. Now I see how much power I lost from a knock sensor degrading. A degraded knock sensor quietly robs performance.

..with this much power it's clear my cats are ok, not plugged.
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