09-28-2019, 01:09 PM | #1 |
Former GM Technician
Drives: 2018 ZL1 A10, 06 Silverado Duramax Join Date: Sep 2009
Location: Switzerland
Posts: 336
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Black smoke start up
I noticed a puff of black smoke every time I start the car.
Is this normal, or could I have a possible leaking injector? https://youtu.be/qVLmxejOHXk The exhaust looks also darker than others. But I was also getting on it pretty hard a few times lately.
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2018 Camaro ZL1 A10
Rotofab Big Gulp, Nick Williams 103, Magnuson 2650, 9.17" (14%) lower, 90mm upper, Vengeance Racing Heads (LME) Cam Package (Cammotion Stage 1), Johnson Lifters, JMS Voltage Booster, Lingenfelter high flow check valve, BBK shorty headers, Custom 2.75" down pipes, Gesi Gen2 high flow cats, MM catch can 791whp, 772ft-lbs SAE Just added 30% XDI Injectors, LPE big bore hpfp, Flex fuel. Elite tuning, results coming soon. 2006 Silverado Duramax Diesel MPI Compound Turbo 40% over Injectors Efi Live DSP5 Tuning Follow me on Instagram: Swisstyphoon1980 |
09-28-2019, 02:05 PM | #2 |
@viurniel
Drives: 19 ZLE A10, 15 2SS, 90 300ZXTT Join Date: May 2016
Location: Miami
Posts: 409
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You have a modded and tuned car so that might be your new normal.
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09-28-2019, 02:30 PM | #3 |
Former GM Technician
Drives: 2018 ZL1 A10, 06 Silverado Duramax Join Date: Sep 2009
Location: Switzerland
Posts: 336
|
Maybe, but they said they didn't change anything at the idle/ start up tables..
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2018 Camaro ZL1 A10
Rotofab Big Gulp, Nick Williams 103, Magnuson 2650, 9.17" (14%) lower, 90mm upper, Vengeance Racing Heads (LME) Cam Package (Cammotion Stage 1), Johnson Lifters, JMS Voltage Booster, Lingenfelter high flow check valve, BBK shorty headers, Custom 2.75" down pipes, Gesi Gen2 high flow cats, MM catch can 791whp, 772ft-lbs SAE Just added 30% XDI Injectors, LPE big bore hpfp, Flex fuel. Elite tuning, results coming soon. 2006 Silverado Duramax Diesel MPI Compound Turbo 40% over Injectors Efi Live DSP5 Tuning Follow me on Instagram: Swisstyphoon1980 |
09-28-2019, 02:59 PM | #4 |
Thank you Al Oppenheiser!
Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017
Location: Sarasota, FL
Posts: 4,966
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Tips look normal to me.
What does that smoke smell like? Burnt fuel or burnt oil or nothing (water vapor)? |
09-28-2019, 03:14 PM | #5 |
Sarcasm loading --------
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normal.
black smoke is fuel, blue is oil.
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"The salesman actually told me to stop getting it sideways during the test drive"
2018 MBM ZL1 1LE - Stock 2014 CRT ZL1 574 rwhp, 537 rwtq - SOLD 2010 IBM SS Camaro VVT L99 w/ TR6060 swap, 489 rwhp, 444 rwtq - SOLD |
09-28-2019, 04:11 PM | #6 |
@viurniel
Drives: 19 ZLE A10, 15 2SS, 90 300ZXTT Join Date: May 2016
Location: Miami
Posts: 409
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I should add that this is similar to what I see on my car.
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09-29-2019, 09:41 AM | #7 |
Drives: 2018 Camaro ZL1 Join Date: Aug 2018
Location: Georgia
Posts: 1,360
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You probably have a lot of carbon buildup in the exhaust like me and probably every other DI Camaro.
I noticed black smoke coming out the back of my car when I romp on it after a day of easy driving. My car is 100% stock. |
09-29-2019, 09:52 PM | #8 |
Drives: '21 ZL1 A10 '08 SRT10 Join Date: Apr 2019
Location: Washington
Posts: 132
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