engine detination

[e36325is]

I brought this up in my last post but......



My 93 325is has a detination issue, it usually happend at about 2000-2500 rpms

on inclines and flat surfaces, I have had both knock sensor replaced and the mechanics have replace my dinan chip with a stock spec chip, still it knocks.. I run 91 chevron gas ($2.15 a gallon by me )

any ideas on what else it could be? it pains me to hear it


-Ben

 

[JUS]

Did you ever find out what was the problem tahnks for the info.

JUS-N-4

 

[jazfe]

Ben, I would suggest the seafoam treatment. Get the carbon out of your combution area. Might stop your detonation.

 

[Big Daddy]

($2.15 a gallon by me )

I wish we could still get 91 octane for that price!!!

 

[jazfe]

Have you had the timing checked?