Dark grey smoke coming out of exhaust any ideas what is causing this???
 

97 gsr with 60k heavy dark grey smoke is coming out of my car when i get down on it hard it just started any ideas?

Re: Dark grey smoke coming out of exhaust any ideas what is causing this??? (RedGSRblingin)
 

are u sure its not a blue/grey smoke?? if so it means that your engine is using/burning oil at high revs like a lot of members cars on here. valve seals or piston rings, get a compression test done and if need be a leak down test, that should narrow it down.

Re: Dark grey smoke coming out of exhaust any ideas what is causing this??? (mugenracer)
 

nah it is dark grey i even had a friend get behind me and he said it was dark grey no blue tint at all

Re: Dark grey smoke coming out of exhaust any ideas what is causing this??? (RedGSRblingin)
 

does it do it when your secondaries open??

Re: Dark grey smoke coming out of exhaust any ideas what is causing this??? (TeamTooQuick)
 

not exactly sure but the smoke pours at high rpm

Re: Dark grey smoke coming out of exhaust any ideas what is causing this??? (RedGSRblingin)
 

well when i hit my secondaries it shoots out a cloud of dark grey smoke... its just unburnt fuel...


[Modified by TeamTooQuick, 2:58 AM 5/24/2002]

Re: Dark grey smoke coming out of exhaust any ideas what is causing this??? (TeamTooQuick)
 

wonder why my car just started doing this? could need some plugs?

Re: Dark grey smoke coming out of exhaust any ideas what is causing this??? (RedGSRblingin)
 

i had my car on the dyno last week, at 4400rpm (vtec) and 6000rpm (secondaries opening) it let out a puff of black/grey smoke but nothing after that, and when i was going home i was following my friend in his VTi civic and the same was happening when his vtec engaged.