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Thread: Use MAF for off boost/2 Bar SD when in boost

  1. #11
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    i believe that if you command stoich it allows the LTFT to become active thus throwing off your auto ve
    yea what he said
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  2. #12
    Lifetime Member hquick's Avatar
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    Correct me if I'm wrong Joecar....after we went through this stuff a while back with my autoVE wasn't it understood that even commanding 14.70 is no good as that equals EQ 1.00?
    Mine is set to 1.0059 EQ. which equates to around 14.58 AFR.
    Howard

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  3. #13
    Joe (Moderator) joecar's Avatar
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    Howard,

    Good point...

    that was because your B3601 was set to 14.68... showthread.php?t=5144

    (that's why it's better to use EQ units instead of AFR units).

  4. #14
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    Quote Originally Posted by joecar
    Howard,

    Good point...

    that was because your B3601 was set to 14.68... showthread.php?t=5144

    (that's why it's better to use EQ units instead of AFR units).
    So 3601 and 3647 must be different to prevent the pcm from slipping into semi close loop?

  5. #15
    Lifetime Member 5.7ute's Avatar
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    As Redhardsupra points out elsewhere, the commanding stoich & disabling pe step is no longer necessary when using a wideband. These steps are only an offshoot of using trims to tune.

  6. #16
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by Earl H
    So 3601 and 3647 must be different to prevent the pcm from slipping into semi close loop?
    That's correct.

  7. #17
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    So what should we set it up to command 14.7 or 14.5? Once BENs are at ~ 1.0, then what?

  8. #18
    Joe (Moderator) joecar's Avatar
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    If you command 3% under or over, it should be fine.

    When BEN's are close enough to 1.00, then you can command stoich if you so wish...
    but do keep the high MAP columns of B3647 rich (12.6 or what you want at heavy load).

  9. #19
    Joe (Moderator) joecar's Avatar
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    Default Semi-open loop

    Here's what semi-open loop looks like (look at AFR_WBOS1)...


  10. #20
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    Can you guys tell me what you think of these two files? BENS close enough. Commanded is at 14.6 on these passes. I haven't had a chance to adjust.
    Attached Files Attached Files

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