dwana wrote:

> Hello:
>
> I've recently noticed some pinging in my car at low RPM (less than
> 2000). I don't hear anything at RPM above 3000. I checked all the
> plugs, plug wires, timing and everything looks OK. I recently changed
> to BOSCH plugs instead of NGK.
>
> Anyone have any ideas on likely causes of pinging? Thanks.
>
> PK

Well, you could replace those crappy Bosch plugs with new NGK's.