Quote:
Originally Posted by ///Motivated
Here's the update. Look at freeze frame data (if your OBD provides it). For mine it showed only one cylinder of the bank was giving a problem. Rules out sensor as the problem. Mine was a failed lash adjuster allowed cam-to-roller ticking (vibration) that was triggering the sensor. The sensors job is to "listen" for knock by sensing vibration and it was sensing that mechanical vibration.
Turns out the roller rocker was trashed and the cam lobe had some pitting. New lash adjuster, roller rocker and an eBay cam, and just did a 350 mile trip with no check engine codes.
|
I just reread this...what an amazing time when you can buy a cam for a BMW engine on eBay...
