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True Flow XDI causing black exhaust smoke???

Discussion in 'Performance and Tuning' started by Gonzo, Feb 19, 2008.

  1. Gonzo

    Gonzo [OP] Member

    Joined:
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    10
    NorCal
    Vehicle:
    2008 X-Runner. Black Sand-Pearl.
    True Flow XDI, URD Short Shifter, Hood Protector, TRD Seat Covers, OBX Pedals, Tacoma All Weather Mats, X-Runner License frame back & Black-Out Front
    I installed an XDI a week ago, and I'm still getting a bad Air/Fuel mixture causing black smoke "Carbon Burn"??? Is this normal? It only happens when reving the engine above 5500 Rpm in neutral when the motor is cold...
     
  2. Roland

    Roland My other ride has sails

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    UnderCover Tonneau, Bed mat, Bug Deflector, aFe Pro Dry S, Secondary Air Filter removed, Synthetic 5W-30 oil, Scanguage II with blendmount, WeatherTech floorliners, Toyota seat covers, Installed OEM intermittent wipers, TacomaWorld sticker, Defrost without AC mod, Hidden Hitch
    Sounds like carbon... But why would you want to be reving your engine like that... Especially while it's cold?
     
  3. Gonzo

    Gonzo [OP] Member

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    NorCal
    Vehicle:
    2008 X-Runner. Black Sand-Pearl.
    True Flow XDI, URD Short Shifter, Hood Protector, TRD Seat Covers, OBX Pedals, Tacoma All Weather Mats, X-Runner License frame back & Black-Out Front
    It happened this morning while half asleep. I did try reving it again once I arrived at work and it did'nt smoke as much, but still smoked! It's been buggin me all day!! Has anyone in TacomaWorld ever seen, or had this problem with True Flows XDI????
     
  4. Gonzo

    Gonzo [OP] Member

    Joined:
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    10
    NorCal
    Vehicle:
    2008 X-Runner. Black Sand-Pearl.
    True Flow XDI, URD Short Shifter, Hood Protector, TRD Seat Covers, OBX Pedals, Tacoma All Weather Mats, X-Runner License frame back & Black-Out Front
    Thanks PHANTOM! I'll check that out in the mornin. If the mixture IS rich, will I need to get the motor Dyno tested???? Friggin truck is only 4 months old with 6200 miles on it, my first engine mod is a CAI and I'm having problems already!:mad:
     
  5. utixrunner

    utixrunner I <3 Boost

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    Florida
    Vehicle:
    2007 SWB X-Runner
    TRD S/C, DT Long Tube Headers, Jardine Catback, TRD Intake, Trd Short shifter, TTC Dual Traction Bars, Sway bar bushing kit, c2c lowering kit, lots of other little things
    The black smoke is not caused by you running rich, it is because when you install a CAI on this truck it removes the stock carbon trap. Also probably not a good idea to rev high until you motor is warm.
     
  6. tacomaman06

    tacomaman06 Carolina Alliance: Lead, follow, or get the hell o Staff Member

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    im gonna go ahead and tell you for a fact that tacomas run pretty rich from the factory anyway........so its relatively normal, and an intake adds to it, unless you install a maf calibrator from urd. i have an airaid intake, and it actually made my truck run a bit richer.
     
  7. 05PreRunner

    05PreRunner "Living life in the FAST lane..."

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    TRD intake, JBA "shorty" headers, URD y-pipe
    i have the True Flow XDI and i have never seen black smoke because of it........... but then i'm never revving it that high on a cold engine........
     
  8. Gonzo

    Gonzo [OP] Member

    Joined:
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    10
    NorCal
    Vehicle:
    2008 X-Runner. Black Sand-Pearl.
    True Flow XDI, URD Short Shifter, Hood Protector, TRD Seat Covers, OBX Pedals, Tacoma All Weather Mats, X-Runner License frame back & Black-Out Front
    Damn! I let the truck sit and warm up today for five minutes or so, and the engine at this point is definitely not cold, (Also, I did'nt rev it this time:) and while driving away, at less than a Sunday cruise so to speak, I'm still noticing smoke!!! I'm at a loss for any positive words at this point!!! All I could think about on the way home this afternoon was whether, or not to put the factory air intake back on!!! DID IT GET A TRUE FLOW CAI LEMON, OR DID I JUST CHOOSE THE WRONG CAI??? I SHOULD"VE GOT THE URD CAI!!!!!!!!!!!
     
  9. utixrunner

    utixrunner I <3 Boost

    Joined:
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    Florida
    Vehicle:
    2007 SWB X-Runner
    TRD S/C, DT Long Tube Headers, Jardine Catback, TRD Intake, Trd Short shifter, TTC Dual Traction Bars, Sway bar bushing kit, c2c lowering kit, lots of other little things
    ok let me just make sure I understand you completely. Under heavy acceleration you are having some black smoke from your exhaust right? not a whole lot but noticeable? If so it is because you have a CAI not because of your afr being out of whack (although it is probably leaner than stock) the reason for the black smoke is because you remove the carbon trap that is on the stock air box. No CAI retains this carbon trap so you will have some slight black smoke. Hope this helps:)
     
  10. Gonzo

    Gonzo [OP] Member

    Joined:
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    NorCal
    Vehicle:
    2008 X-Runner. Black Sand-Pearl.
    True Flow XDI, URD Short Shifter, Hood Protector, TRD Seat Covers, OBX Pedals, Tacoma All Weather Mats, X-Runner License frame back & Black-Out Front
    THANKS utixrunner!!! That puts me at ease a bit. Question, is not having a carbon trap going to adversely affect my cat.converter or any other part of the system?? Also, this may be for another post, but do you have a short shifter?? I got a URD short shifter on the way and I'm super anxious!!!! Other than being a freak for perfection, I'm loving the new X-Runner!!!!
     
  11. utixrunner

    utixrunner I <3 Boost

    Joined:
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    81
    Florida
    Vehicle:
    2007 SWB X-Runner
    TRD S/C, DT Long Tube Headers, Jardine Catback, TRD Intake, Trd Short shifter, TTC Dual Traction Bars, Sway bar bushing kit, c2c lowering kit, lots of other little things
    No problem, You should not have any problems with your cats, I havent nor have I heard of anyone blowing cats because of an intake. congrats on the short shifter it makes a huge diffrence. if something were to go wrong with your cats just put the stock airbox back on and take it in, catalytic converters have a 8yr/80,000 mile warranty
     
  12. colttsi

    colttsi Well-Known Member

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    The only reason you see black smoke is that you have fuel that did not burn, that is it. Your engine runs richer until it is in closed loop which means that your ecm corrects his mixture by the o2 sensor 's readings. When it is in open loop, it means that he uses other sensors (maf, tps etc...) to try and gauge what the best mixture could be. Once the 02 sensors reach their operating temperature they now become functional so you get in closed loop.
     
  13. gdawg25

    gdawg25 Zoom-Zoom

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    I just removed my carbon trap AKA secondary filter and I have no black smoke. The carbon trap in the intake does not affect the exhaust, its main purpose is to remove hydrocarbons that may leak from the intake while the engine is shut down. So unless you are somehow sucking carbon in through your intake:rolleyes: while you are driving then the carbon trap will have no affect on your exhaust.
     
  14. Roland

    Roland My other ride has sails

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    UnderCover Tonneau, Bed mat, Bug Deflector, aFe Pro Dry S, Secondary Air Filter removed, Synthetic 5W-30 oil, Scanguage II with blendmount, WeatherTech floorliners, Toyota seat covers, Installed OEM intermittent wipers, TacomaWorld sticker, Defrost without AC mod, Hidden Hitch
    I was thinking the exact same thing. I don't see how removing the secondary filter could cause carbon or anything else weird to exit the tailpipe.
     
  15. utixrunner

    utixrunner I <3 Boost

    Joined:
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    Florida
    Vehicle:
    2007 SWB X-Runner
    TRD S/C, DT Long Tube Headers, Jardine Catback, TRD Intake, Trd Short shifter, TTC Dual Traction Bars, Sway bar bushing kit, c2c lowering kit, lots of other little things
    I guess I stand corrected, this has been discussed many times on other forum that Im on but I guess they came to the wrong conclusion:)
     
  16. Gonzo

    Gonzo [OP] Member

    Joined:
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    NorCal
    Vehicle:
    2008 X-Runner. Black Sand-Pearl.
    True Flow XDI, URD Short Shifter, Hood Protector, TRD Seat Covers, OBX Pedals, Tacoma All Weather Mats, X-Runner License frame back & Black-Out Front
    The black smoke is an absolute mystery to me at this point. Since the truck had no visible sign of running rich, lean, or having blatant black smoke running through the system before removing the stock air box, my thought was that the new CAI was the root cause... I'm baffled at this point as to what is at fault causing the smoke! Any suggestions as to how I'd go about diagnosing the issue whithout getting the dealership involved??? On that note, I had the dealer check the X-Runner for an annoying rattle in the cabin while the radio was at half its potential volume. After three hours, the Tech said there was no problem found!!! Doubt they even checked it out?? That's my guess.
     
  17. colttsi

    colttsi Well-Known Member

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    The only visible sign that tells you you run rich is the black smoke coming out of your exhaust. There are many things that can cause that and only an experienced mechanic would know where to look to find the problem.
    If you only see black smoke coming out in cold conditions after start up, stop revving your engine when it s cold, it is borderline normal. If it does the same thing when it s hot, now there really is something wrong.
     
  18. dwb

    dwb Well-Known Member

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    Pine Mountain, GA
    Vehicle:
    05 Double Cab, TRD Sport/4X4, mostly stock with a few mods.
    Bilstein 5100's all around, 265/70/R17 BFG AT's, TRD seat covers, True Flow XDI Intake System. Fog light mod. More to come.
    Dude, stop taking advice from people and call True Flow. Tell them what's going on and hopefully they can help you. They may even send you another intake. Did you relieve the filter of all excess oil before you installed it.? Are you sure the filter has remained seated in the XDI can? There are several questions you need to address before you get discouraged. It's probably something silly and easy to fix. My advice is to call True Flow support.

    Good Luck.......dwb
     
  19. concrete jedi

    concrete jedi Well-Known Member

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    Broken and scratched tailgate, cracked rear tail light lens, coffee stain in driver seat.
    Although sound advice, taking suggestions from the forum ultimately leads to the fix, that is one of our purposes, offering direction and experience. That's why he asked... :pccoffee:
     
  20. dwb

    dwb Well-Known Member

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    Pine Mountain, GA
    Vehicle:
    05 Double Cab, TRD Sport/4X4, mostly stock with a few mods.
    Bilstein 5100's all around, 265/70/R17 BFG AT's, TRD seat covers, True Flow XDI Intake System. Fog light mod. More to come.
    I just feel that if he needs advice from the forum, the best advice he can get is to contact True Flow asap. :thumbsup:.....Right?
     
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