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Thread: E38 log after setting up for vve adjustments, crazy afrs

  1. #11
    Joe (Moderator) joecar's Avatar
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    Set C6001 DTC P0101,2,3 to A-1-Trip... and when running engine, watch for MAF DTC to show up immediately.

  2. #12
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    No DTC set.... but that run did go 100 times better.lambda stayed within 1.20 tops and .95 ish i think. I know that wasnt a big drive but Im gonna apply this map and see if I can get at least some of it closer than highway drive tomorrow! Hopefully Ill be able to put it back into CL soon Heres the log from that drive...

  3. #13
    Joe (Moderator) joecar's Avatar
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    If you don't get a MAF DTC, then the ECM is still running the MAF, i.e. it won't be running VVE/VE where you expect...

    if it doesn't run VVE/VE then you can't adjust the VVE/VE table.

  4. #14
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    damn it. i thought i was on to something but that makes sense it still doesnt feel right was just a better experience than yesterday. but now that i think of it let me go check cause ill jave to scan the dtcs cause i was looking for a check engine light but the mils are shut off via c0301,3, and 5

  5. #15
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    Yes I got P0102 maf circuit low.... is that what I am looking for?

  6. #16
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    Ugh, I was just looking for a good idle tutorial and found that the vve for e38 tutorial I have was version 1.7 and I just found 1.9, gave it a good read and there are a few new setting I could find right off the bat, c0301 is 10 not 1, c0302 is set to 13500 but mine was set to 30 as per the old tutorial. I had no idea that there were different versions available as someone worked on it.

  7. #17
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    what dtc should i see when i get this right?

  8. #18
    Joe (Moderator) joecar's Avatar
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    P0102.


    If any of the MAF DTC's are present (regardless of MIL), the ECM will run from the VVE/VE table exclusively.

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