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kgkern01

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About kgkern01

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  1. Did you ever find a resolution to your issue? I'm having the same problem, and already replaced the BCM and it didn't help fix my problem.
  2. Did you ever find the resolution to your issue? I'm having the same no left turn/brake and no dome lights/chime when door open as well, just had the BCM replaced at the dealership, the issue is still there...
  3. Is this a BCM issue? Has anyone bought A new one and had the dealer program it? If so how much did they charge? A new AC Delco one is only $84 on Rock auto.
  4. Not only do I have the left rear turn signal failure, but the brake light doesn’t light on that side either. I get light only when the lights are on. I have tested the harness for continuity and it is fine. Unplugging the taillight assemblies on both sides, right side still doesn’t throw a right side failure but the left side still does. Along with this issue, my interior dome lights don’t come on with the doors open and the compass/gps on the truck isn’t working. All of this started happening around the same time. Any ideas?
  5. So the guy that tuned my 6.2, just tuned a bone stock 6.2 on 93 octane, and my truck has just a cold air intake, heavier Ridge Grapplers, and the E85 conversion, and the bone stock after tuning the stock truck made 358rwhp/405 rwtq, mine made 380 rwhp/435 rwtq (on 65% ethanol per the sensor). So a gain of 22rwhp/30rwtq. The extra 30ft/lb of torque is noticeable. Since the tune I have been running E85 exclusively, except for a road trip I went on a couple weeks ago, I ran 93. The lesser torque was noticeable on the 93.
  6. So the guy that tuned my 6.2, just tuned a bone stock 6.2 on 93 octane, and my truck has just a cold air intake, heavier Ridge Grapplers, and the E85 conversion, and the bone stock after tuning the stock truck made 358rwhp/405 rwtq, mine made 380 rwhp/435 rwtq (on 65% ethanol per meter). So a gain of 22rwhp/30rwtq. The extra 30ft/lb of torque is noticeable. Since the tune I have been running E85 exclusively, except for a road trip I went on a couple weeks ago, I ran 93. The lesser power was noticeable on the 93.
  7. My tuner said the same, that he doesn’t really mess with Torque Management on these trucks much either.
  8. True, I’m sure dialing back the torque management in the tune helped quite a bit, but the (estimated) extra 35rwhp/45rwtq from the E85 part of it didn’t hurt lol.
  9. It was not tuned prior to the E85, but with just a base E85 map loaded, the base pull was only down 10rwhp, 12rwtq vs the final pull. Adjusting AFR and timing further on subsequent pulls didn’t gain anymore than the final numbers. Plus, even the stock 5.3 is factory rated what 30-35 hp/tq more on E85, with .5 less compression, 0.9L smaller displacement, smaller cam. So the gains for the 6.2 converting to E85 are not really surprising.
  10. So now after driving it around a few days the torque difference alone is worth it to convert in my opinion.
  11. I actually just bought a GM sensor, Russell female fuel line connectors and put it in line where the tank soft line connects to the hard line, then extended the sensor plug 18”. Only $70 worth of parts and no cutting fuel lines. The 8L90 is rated up to 738ft/lb of torque, which should be around 575 rwtq, so if you’re approaching that with the blower then it may be upgrade build time for the trans?
  12. My tuner said that the early 8-speeds are tunable, but the later ones you have to send the TCM off For tuning because they are locked. I didn’t dyno it before I did the FlexFuel conversion, but bone stock L86 dyno’s that I’ve found tend to be in the 330hp/365tq range. So the air intake, smoothed throttle body, and E85 tune got roughly 50rwhp/70rwtq. Which I’ve seen others gain 35-40rwhp/40-50rwtq off just Doing the E85 Swap and tune, so 20hp/tq off intake and throttle body is about right.
  13. Just got my 2015 6.2 Sierra dyno tuned after adding the ethanol sensor, also did 8-speed tuning. Only mods are Volant intake, home ported throttle body, and E85 conversion with dyno tune, also on heavy Nitto Ridge Grapplers. 380rwhp/435rwtq. Pretty happy with the numbers.
  14. I decided to do a catch can because I ended up cleaning the valves and intake manifold (which had oil pooled in the bottom of it). So this way the valves, intake, etc would stay clean and not get any worse.
  15. Since there’s a lot of threads about DI valve coking without a catch can, I figured I’d show my valves at 94k miles, stock except for Volant CAI, and exhaust cutout. I just did a manual valve cleaning, Elite catch can, plugs/wires, ported TB after these pics. E85 conversion and dyno tune coming next week. They weren’t as bad as I thought they would be based on some other pics I’d seen.
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