IHADAV8.com - Turbo Buick Tech, and Nonsense

Tech Area => General Buick Tech => Topic started by: Shimy87 on August 15 2011, 12:37:37 PM

Title: puffs of black smoke??
Post by: Shimy87 on August 15 2011, 12:37:37 PM

Was following the buick to a car show this weekend, noticed something and have a stupid question. When she would accelerate from a stop using maybe 10 lbs. of boost the car would puff a small amount of black smoke at each shift. Bad thing or normal?? Also when she lifts on the gas it puffs a bit of blue smoke, I knew it was burning a small amount of oil, maybe 3/4 quart in 3000 miles, so I figure that was that issue.

Title: Re: puffs of black smoke??
Post by: SuperSix on August 15 2011, 01:12:19 PM

Two different issues. Black usually indicates a rich condition, blue is oil.

Title: Re: puffs of black smoke??
Post by: Scoobum on August 15 2011, 08:42:37 PM

You have one of Erics chips in your car...and he errs on the rich side on his default settings...so it may be normal.

Title: Re: puffs of black smoke??
Post by: Steve Wood on August 15 2011, 10:39:28 PM

watch the 02s when you lift off the gas and then see what happens after the initial lift

Title: Re: puffs of black smoke??
Post by: Shimy87 on August 15 2011, 10:48:01 PM

on a WOT run its between 800 and 810 (lowest recorded reading). I'll  watch see what it reads just after I lift.

Title: Re: puffs of black smoke??
Post by: Steve Wood on August 15 2011, 11:42:55 PM

running pretty rich to begin with

Title: Re: puffs of black smoke??
Post by: Shimy87 on August 16 2011, 08:42:15 AM

I am still on the default settings, I'll take some fuel out and see what happens. I had so much knock trouble before that I'm probably overcautious.
 
Thanks!

Title: Re: puffs of black smoke??
Post by: Steve Wood on August 16 2011, 09:03:01 AM

the cautious run longer

Title: Re: puffs of black smoke??
Post by: Shimy87 on August 16 2011, 09:24:33 AM

but run slower

Title: Re: puffs of black smoke??
Post by: Steve Wood on August 16 2011, 10:34:10 AM

yep