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Thread: Rich Idle Afr or bad WB or bad tune.

  1. #1

    Rich Idle Afr or bad WB or bad tune.

    Ive got some heavy fumes smoke coming from tail pipe, appears to be blue smoke but could it be from overly rich idle? My serial port aem WB is reporting 11.- 12 afr when its commanding 14. I'm running the Lt4 Hotcam. Kinda hard to start sometimes. I tried scaling down VE table but it didn't go leaner. heres a few logs and my tune.

  2. #2
    Anybody with some tuning skills hmu I need some tuning,

  3. #3
    Advanced Tuner
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    What injectors?

  4. #4
    Tuning Addict 5FDP's Avatar
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    Yeah I doubt he's running the 21lb/hr injector the tune says it is.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  5. #5
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    Did this tune start out as a truck tune?

    Think the 02 fbodys had 28#?

  6. #6
    Yeah I was running a distributor and the 0411 on my sbc running an 02 express tune in sd. Just swapped over to 24x and ended up licensing a cadillac 02 6.0 tune then segment swapped from and 02 camaro, and did my best to transfer all my data over. This is my old file, Running these at 43 psi, 25317628 injectors,

  7. #7
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    Thats getting complicated. So this is a 350 SBC with a "411" pcm?

  8. #8
    0411 yeah on a sbc with an lt4 hotcam and a ramjet intake manifold. Not the best combination but its ok,