GRMScott wrote:
[quote]
It appears we’ve got a header leak somewhere, the exhaust is of an unknown vintage and the filter could certainly use replacement. Also, it’s idling super rich, fouling plugs every few weeks and in general not running that wonderfully. The engine needs some TLC is all I’m saying, nothing illegal :laugh:[/quote]
For me, the fouling problem at idle was the pressure regulator and damper. While in my 944, the regulator was safely under the hood, on the 325’s it’s under the car and mine was completely rusted. They aren’t expensive, I’d try that first. And yes, don’t use the Platinum plugs.