d16z6 running rich in vtec
08-15-2005, 10:35 AM
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d16z6 running rich in vtec
right when i hit vtec i get a lot of black smoke, im going to replace the O2 sensor and see if that helps...im looking to do a swap soon. (my motor has 278,000 mi) any other suggestions? any info would help. thanks.
08-15-2005, 10:37 AM
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Once VTEC engages, it's normal to have a little smoke come out of the exhaust. When the crossover takes place, the ECU does dump more fuel to make up for the excess amount of air coming into the cylinder.
08-15-2005, 08:42 PM
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Re: d16z6 running rich in vtec (reconstructdead)
I think you should save that money going towards the O2 sensor for the swap. 278k is a lot on that motor. Not worth fixing anymore. What made you jump to the O2 sensor as a problem? Is it because you get CEL?
08-17-2005, 12:48 PM
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the black smoke is no biggie. thats fuel.
but the drops coming out of your exhaust is probably condensation. just water vapor. do you have stock exhaust?muffler? my old coupe smoke black in vtec w/128,000. its nothing. also, do you have a adjustable fuel pressure regulator?
-Chris
but the drops coming out of your exhaust is probably condensation. just water vapor. do you have stock exhaust?muffler? my old coupe smoke black in vtec w/128,000. its nothing. also, do you have a adjustable fuel pressure regulator?
-Chris
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08-22-2005, 09:43 AM
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Re: (Deemeetree)
the only thing that comes out of my exhaust is black drops of moisture sometimes when its idling, and it smokes a lot when i get on it hard.
08-22-2005, 09:47 AM
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its just running to rich, I know your not getting a CEL, but not everything throws a CEL if it's bad, I just got my TPS light to go off after 2 TPS's, I just replaced the whole throttle body, i was dumping hella black smoke when I was in limp mode from it running so rich, but everything is fine now.
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