Unburnt gas from exhaust - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

sliEighty · 10-28-2009, 11:56 AM

Ok so i have something fairly common, unburnt gas coming from the exhaust at idle. My car has been sitting while i slowly am putting it back togeather, how ever i haven't driven it down the road yet. I replaced the O2 sensor, coolent temp sensor, o-rings on the injectors thinking that is what it could be from with no luck of it fixing my problem. At this point im just trying to figure out what else it could be. It will revv past 2500 so its not the MAF. Any ideas will be taken into consideration.

thanks,
chris

jdm213 · 10-28-2009, 12:45 PM

thats normal on my car but at the same time it doesent push out alot. does yours come like alot?

sliEighty · 10-28-2009, 12:59 PM

unburnt gas is not normal....

keytops · 10-28-2009, 02:18 PM

are you sure its not water?

*!Zar!* · 10-28-2009, 02:31 PM

That's not gas. That's condensation. Having it actually shows that you are getting optimum combustion. All cars do it when sitting and warming up at idle.

yokotavia · 10-28-2009, 02:33 PM

if it actually is gasoline then your running rich.
get a wideband haha

army240 · 10-28-2009, 04:50 PM

Even with a bad ass rich ratio... I don't think that fuel would come out the exhaust... this is condensation

and it's normal

jdm213 · 10-28-2009, 07:29 PM

Quote:

Originally Posted by sliEighty

unburnt gas is not normal....

it isnorma, your always gonna get some out of the exuast and like others say that its also condensation, if it was something wrong it will be smoking

10-28-2009, 11:56 AM	#1
sliEighty Zilvia Junkie Join Date: Jan 2006 Location: The sweetest place one earth Posts: 429 Trader Rating: (2)	Unburnt gas from exhaust Ok so i have something fairly common, unburnt gas coming from the exhaust at idle. My car has been sitting while i slowly am putting it back togeather, how ever i haven't driven it down the road yet. I replaced the O2 sensor, coolent temp sensor, o-rings on the injectors thinking that is what it could be from with no luck of it fixing my problem. At this point im just trying to figure out what else it could be. It will revv past 2500 so its not the MAF. Any ideas will be taken into consideration. thanks, chris __________________ livin on the east cost is harder then you think... ECM for life lll

10-28-2009, 12:59 PM	#3
sliEighty Zilvia Junkie Join Date: Jan 2006 Location: The sweetest place one earth Posts: 429 Trader Rating: (2)	unburnt gas is not normal.... __________________ livin on the east cost is harder then you think... ECM for life lll

10-28-2009, 02:31 PM	#5
!Zar! Ezel verkrachtende schijteter Join Date: Nov 2004 Location: Milf Valley Posts: 9,450 Trader Rating: (2)	That's not gas. That's condensation. Having it actually shows that you are getting optimum combustion. All cars do it when sitting and warming up at idle. __________________ -=Mel=-

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10-28-2009, 12:45 PM	#2
jdm213 Leaky Injector Join Date: Sep 2009 Location: los angeles Age: 19 Posts: 74 Trader Rating: (0)	thats normal on my car but at the same time it doesent push out alot. does yours come like alot?

10-28-2009, 02:18 PM	#4
keytops Join Date: Apr 2007 Location: SOCAL Age: 21 Posts: 23 Trader Rating: (0)	are you sure its not water?

10-28-2009, 02:33 PM	#6
yokotavia In time-out for misbehaving. Join Date: Dec 2007 Location: The land of bosos and schoolgirls Posts: 536 Trader Rating: (16)	if it actually is gasoline then your running rich. get a wideband haha

10-28-2009, 04:50 PM	#7
army240 Leaky Injector Join Date: May 2008 Location: Quebec Age: 25 Posts: 79 Trader Rating: (0)	Even with a bad ass rich ratio... I don't think that fuel would come out the exhaust... this is condensation and it's normal