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Thread: My first try at tuning. Lean Decel issue, please help

  1. #1
    Potential Tuner
    Join Date
    Sep 2015
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    1

    My first try at tuning. Lean Decel issue, please help

    The log file was taken while I was gathering data for a MAF tune. The VE table was tuned in open loop and all the values were within 10% so I moved on the to the MAF tuning. In both tunes setups, when I let off the gas it goes full scale lean. I turned off the DFCO by setting it to 284. The motor is in a sandrail and I'm not street legal. In the dirt I can't give it more than 50% or so throttle without the tires spinning up, so my really high power runs are limited to what I can sneak in on the street, thats why I was satisfied with 10% error in the VE table and wasn't shooting for 1-2% errors. More VE/MAF tuning will take place once I'm in the sand and have traction and load. I'm thinking it has to do with the transient settings, but I have no idea where to start with those. I would like to keep the AF ratio somewhat close during decel because the lean pops are annoying. Thanks guys.
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