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  1. Justin

    need help solving lean condition

    Try it with the MAF disconnected to isolate that variable.
  2. Justin

    need help solving lean condition

    We have been ardent EFILive users and supporters for 13 years now and one of the key benefits that I've seen is the flexibility of their scan tool is quite a bit above HPT and HPT is leaps and bounds above many others. Both software packages are extremely capable though and really end up being...
  3. Justin

    How to install E-Fans

    A Tech2 *can* enable it, but only with a VCI from GM. That would be a custom-written software for your vehicle from GM Engineering that is then installed by the dealer. If you can convince them to do it and are willing to pay for it, then that would be an option. Otherwise, any custom tuning...
  4. Justin

    need help solving lean condition

    That would be strange, as all 250+ 2005 Tahoes we've tuned over the years have a 0.8 second PE delay from the factory. Shoot me your VIN and I'll pull up a factory CAL and see if there isn't something different with yours specifically. You have me curious.
  5. Justin

    need help solving lean condition

    To be fair, the 60 second PE delay is only on 2500+ models and it definitely sucks. Most will hit cat converter protection mode after about 10 seconds though and then go overly rich.
  6. Justin

    need help solving lean condition

    Your plugs do not indicate to me that you have fresh air hitting the O2 sensors. If you did, the plugs would be black, as the PCM would be improperly overcompensating and dumping excess fuel in. If I read it correctly, you're fairly close to "normal" trims at idle, but progressively raise as...
  7. Justin

    BB Tune & AFE GT Intake on 15i+ Denali

    Sounds good, happy to help.
  8. Justin

    DBW Throttle Body Relearn?

    Was the trans rebuilt to the same spec? Same torque converter used? If not, its possible that a tighter converter was installed, which would reduce response a bit, especially at low RPM.
  9. Justin

    Electrical Issue

    It sounds like you caused one computer in the truck to lose communication temporarily with the network. It then ceases to function as normal. Disconnecting the battery causes those codes to all reset and resume normal operation. Sometimes you will also have to touch the battery terminals...
  10. Justin

    BB Tune & AFE GT Intake on 15i+ Denali

    According to our testing, yes, the aFe is the way to go. If you shoot us an email to parts@black bearperformance.com, we will let you know if there are any specials or discounts going on that can be taken advantage of.
  11. Justin

    BB Tune & AFE GT Intake on 15i+ Denali

    That's interesting, most don' have that issue of excess noise. Glad you found the setup you are happiest with!
  12. Justin

    BB Tune & AFE GT Intake on 15i+ Denali

    Out of curiosity, did you try the aFe with the plug in it as well? We've run into a few trucks that were obnoxiously loud without the plug in, but toned down quite well with it installed.
  13. Justin

    87 octane vs 91 octane

    EFI University tested their LT1 engine on their engine dyno on both 87 and 91 octane to compare the differences. 87 octane resulted in a greater than 50hp loss over 91 octane. The LT1 is identical to your engine with the exception of the intake manifold, which has no bearing on the type of...
  14. Justin

    New TVS1900 - 2009-2014 6.2L Yukon Denali/Escalade - DEEP DISCOUNT

    We have one more brand new TVS1900 on the shelf that we want to clear out. List price is $5795. This system can be had for $5250 shipped (within the US) WITH an AutoCal included. If you already have an AutoCal or another tuner to use, then your tune update is free of charge and the price...
  15. Justin

    Black Bear Performance 2016 Intake Test

    The noise difference between the plugged AFE vs not plugged is considerable. If you like that intake noise, then by all means, leave it open. If not, close it. Our dyno testing was with it open, however I am not certain that would have any real world impact on horsepower.
  16. Justin

    Super charger advice

    The magnacharger H/E is about as big as you can fit in there. As I recall, it just about fully matches the behind-the-grille opening right in front of the A/C condensor. I can't compare to the Edelbrock as I haven't seen it on that model. Quality of parts are high on all three systems...
  17. Justin

    Black Bear Performance Tune Event Seattle, WA; March 12-14, 2017

    Nothing on schedule right now, but we will have some availability in Spokane/Coeur D'Alene nxt week.
  18. Justin

    Do you guys have a way to delete 15+ magnetic ride

    We'd love to, as I have a sneaking suspicion that MRC is responsible for some of the vibration at high speeds that are encountered.
  19. Justin

    Do you guys have a way to delete 15+ magnetic ride

    Sorry, there is nothing that we can do about magnetic ride at this point.
  20. Justin

    The 15+ Supercharger/turbo Thread

    Try this link here: http://www.blackbearperformance.com/Files/TVS1900-DI-Install.pdf Install is only slightly different on an SUV.
  21. Justin

    The 15+ Supercharger/turbo Thread

    Komet Motorsports has worked with some of our customers in the past for that type of installation. They have been nothing but honest and reputable in our experience.
  22. Justin

    The 15+ Supercharger/turbo Thread

    We would equally recommend the Edelbrock and the Magnacharger. Both are high quality kits with fantastic instructions and both have well-designed bypass setups. It would really come down to aesthetic styling and pricing.
  23. Justin

    The 15+ Supercharger/turbo Thread

    Yes sir, you shouldn't have any problems in that regard. As intake temps increase you'll automatically have the timing reduction needed to maintain safe operation. You'll likely not have to work the vehicle nearly as hard to get the power needed to accelerate and maintain speed.
  24. Justin

    The 15+ Supercharger/turbo Thread

    It is typically 100-120hp right out of the box, depending on fuel quality in your area. A simple 10 minute pulley swap can bump up the boost for another 60-80hp.
  25. Justin

    Shift kit

    Your experience is apparent. You are right. The thousands of trucks owners with shift kits we've dealt with that experienced inconsistent shifts were wrong. Carry on.

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