I gotta question that Im hoping can get answered on here. As of late, and when I say as of late i mean the last 2 months, when ever i am sitting at a stop light or something idle, it smells like my car is running really really rich. Smells like rotten egg really. This is mainly when im at idle, otherwise you cant really smell it. Well I changed my spark plugs today, and after about 60 miles, I checked #4 cylinder only, b/c i was in a rush, and it was pretty damn white, Like an ashy white, but definately not grey.

Dyno graph shows pretty much a perfect a/f ratio throughout the rpm band, except before 3500 its around 13.5:1 since i dont really hit booost til then? Anyone got any suggestions on what it might be? Appreciate it, b/c it is buggin the hell out of me.

 

rich

 

bump for any other inputs

 

anyone? wanna figure out why it smells like im running rich but my plugs tell me lean.

 

bump for an answer.

 

I have ashy white plugs yet smell like toxic fumes at idle too....smells like gas to me....and its a burny irritating feeling if I sit in it too long. I think the seals on my turbo are letting a little oil past but I can't imagine burning oil smelling this toxic. I don't have a wideband yet so I can not tell whats going on with my fuel.

Im posting because I would like to hear if anyone has a response to plugs being ashy white, yet feeling, and smelling rich.