Black smoke while starting.
01-17-2015, 12:46 PM
#1
Junior Member
Thread Starter
Black smoke while starting.
Well i always start my car and let it warm up while I smoke a cig. The other day I noticed black smoke coming out of the exhaust at a cold start. It's been below 25*f for the past few weeks. It would only last for 10 maybe 20 seconds then go to a normal color. It did it today aswell with a smell of gas. I checked my oil and it doesn't have a sweet smell or off color to it. My coolant level is consistent. Could the car be running rich? Is this smoke normal? I've searched around and only seem to fine results with black smoke at wot.
Stock tune stock car except for an injen sp series cai. No codes thrown.
Stock tune stock car except for an injen sp series cai. No codes thrown.
Last edited by ATOMbomb; 01-17-2015 at 12:46 PM. Reason: Automerged Doublepost
01-17-2015, 01:14 PM
#2
Senior Member
Well i always start my car and let it warm up while I smoke a cig. The other day I noticed black smoke coming out of the exhaust at a cold start. It's been below 25*f for the past few weeks. It would only last for 10 maybe 20 seconds then go to a normal color. It did it today aswell with a smell of gas. I checked my oil and it doesn't have a sweet smell or off color to it. My coolant level is consistent. Could the car be running rich? Is this smoke normal? I've searched around and only seem to fine results with black smoke at wot.
Stock tune stock car except for an injen sp series cai. No codes thrown.
Stock tune stock car except for an injen sp series cai. No codes thrown.
01-17-2015, 01:40 PM
#3
Senior Member
its throwing alot of fuel to warmup the cat and since its soo cold there, is not burning all of the fuel and its making a black smoke because its not being mixed properly with thevair.
if you want the science behind it, bring in area47 in here.
if you want the science behind it, bring in area47 in here.
01-17-2015, 04:29 PM
#9
Junior Member
Thread Starter
Didn't know vapor could be black. I have no problem with the cat warm up mode. Kinda like it on cold days. Just wanted to make sure everything's cool. Lol thanks guys
01-21-2015, 07:07 AM
#10
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It is totally normal. I made a thread asking the exact same question a few years ago about my 09 TC. And once i read more onto it and was assured by other members it is 100% normal. My car does it in the cold winter. But obce it warms up outside. It does not do it anymore. You have nothing to worry about.
02-02-2015, 04:51 PM
#13
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since this is not face book and can't tag people in here to get their attention, the search button works as well. Dumping raw fuel on start up is fine, however excessive black smoke rolling out of the ass end of the car is not. Who tuned it? Does it have a cat? Is it throwing codes?
02-02-2015, 06:08 PM
#14
Senior Member
iTrader: (6)
since this is not face book and can't tag people in here to get their attention, the search button works as well. Dumping raw fuel on start up is fine, however excessive black smoke rolling out of the ass end of the car is not. Who tuned it? Does it have a cat? Is it throwing codes?
02-03-2015, 12:58 PM
#18
Senior Member
iTrader: (6)
Find someone to tune you, that's another solution. Just make sure they've worked with lnfs before or buy hptuners and adjust the maf yourself and for the love of god do not get trifecta
02-03-2015, 06:51 PM
#23
Junior Member
Thread Starter
May do that instead. I'd rather not buy the software and just have someone knowledgable in that field. I would be much happier with a tune that fixes the ltft and stft for the intake and maybe boost it up to 18psi max lol. Ultra conservative
I just know canned tunes are cheap as hell compared to having someone tune it.
I just know canned tunes are cheap as hell compared to having someone tune it.
Last edited by ATOMbomb; 02-03-2015 at 06:51 PM. Reason: Automerged Doublepost
02-03-2015, 07:15 PM
#24
My ZZP canned tune had my fuel trims +\- 2 pretty much all the time, they got the intakes dialed in pretty good from what I've seen. I would consider it conservative, but still fun
But there is more power to be found with a custom HP tune obviously. But for what your looking to do with the car I would stick with the canned tune.
But there is more power to be found with a custom HP tune obviously. But for what your looking to do with the car I would stick with the canned tune.
02-09-2015, 06:53 PM
#25
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This is totally normal. Mine does it too. It's just running rich to try to warm up. If you think your's is bad, you should see what it looks like when you start it when it's -15'F with a -70'F wind chill. No car is happy when you start it when it's that cold 
.
Also, you don't need to let it warm up that long, really. Light driving gets it warm faster. Just let it get through CAT warmup mode first. But do what you want with your car.
.Also, you don't need to let it warm up that long, really. Light driving gets it warm faster. Just let it get through CAT warmup mode first. But do what you want with your car.
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