The only change I've made to my car in the last 500 miles has been the installation of an SRT Intake with the race ECU.

I started up my car yesterday which had been sitting for about 3 days, and noticed a huge cloud of purple/white smoke come out of the tailpipes. I quickly ran over and tried to smell it to see what it was. Definetly a fuel smell..

I'm thinking at this point it might be two things. The SRT is dumping a ton of fuel which isn't getting burned (gas mileage has gone WAY down). Or, the engine has worn significantly and is ??? The car has been parked on a level surface, so I don't think oil is transferring out of the cynlinders, but I suppose the engine would have to be in really bad shape for that to happen..

I'm not sure.

Anyone else experience this?

 

Something similar once on an old car. The valve seals would leak into the combustion chamber. But that would be oil not fuel.

 

Does it smell like you are running rich when you are driving?? I know a lot of Lexus are known for that smoke on startup if the car hasn't been driven in a while. If it only happened once after sitting then I don't think you have much to be worried about.

Or else go buy a wideband and check it out for yourself!

Jonny

 

purple white smoke? Sounds like you burned some oil on startup, possible bad valve seals or worn valve guides. Pure white vapor is coolant, Blue(purple?)/white smoke is oil. Rich fuel mixture is black.

 

It wasn't pure black, more white/purple.

That bothers me..

 

Does it happen evry morning? If it doesn't, there is nothing to worry about.