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  1. #1
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    AFR Fluke During Logging on Map 6

    I was out doing some logging late lastnight to get my car ready for MIR this Sunday and something wierd happened. I did a total of 7 pulls with the same settings and the first 3 looked pretty good:
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    The incident happened on the 4th pull during a pull from a dig. take a look at the AFR but note that the boost is still climbing, the meth is still flowing and timing never gets pulled:
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    You can see the slow transition back to normal over the next 3 logs:
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    The crazy thing is that I had more than 1/2 tank of 100 octane the whole time and no codes were ever thrown! The car felt like it went into limp mode but never showed a CEL or any warning or alert signs. The only real sign that I got that something wasn't right was that the car was still building boost but it felt slow. Needless to say i was shocked when I looked at the logs.
    Any thoughts on this or ideas as to what could have happened?
    07 e92 335i Best run: 11.83@ 120.04 w/ 1.84 60' & 2127 DA

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    Hard to tell on my phone, did you send the csv to terry?
    JB4LIFE

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    I posted on n54tech also and he said it may have to do with my fuel settings being too high and overworking the injectors. I will be resetting the fuel parameters and relogging soon..
    07 e92 335i Best run: 11.83@ 120.04 w/ 1.84 60' & 2127 DA

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    Click here to enlarge Originally Posted by Trevor008 Click here to enlarge
    I posted on n54tech also and he said it may have to do with my fuel settings being too high and overworking the injectors. I will be resetting the fuel parameters and relogging soon..
    Why would the injectors be overworked with just meth? Isn't there still room?

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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Why would the injectors be overworked with just meth? Isn't there still room?
    Just what Terry told me. I think it has to do with the amount of extra signal I asked the JB4 to send being too much to handle and not that the injectors themselves were not up to the task of supplying enough power. Maybe he will chime in with clarification though

    On a good note.........got everything figured out I think. Changed the fuel settings back to a near default curve with the exception of ramping it up slightly under 4k rpm just to give the system a fighting chance to support the low end torque. Here are the revised logs:

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    07 e92 335i Best run: 11.83@ 120.04 w/ 1.84 60' & 2127 DA

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