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Type: Posts; User: kur4o

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  1. Replies
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    Sounds great. I will test in next few days. Need...

    Sounds great. I will test in next few days. Need to refresh my flashing skills with arduino.

    I hate unfinished projects, so expect some extra motivation to continue with code polishing and engine...
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    Thanks for the update, Here is a copy of d514a...

    Thanks for the update,

    Here is a copy of d514a dwell + the map muptiplier table I used[guess for some 2-3k miles]

    I can only refresh your memory that 9.43 had some unresolved bug you were...
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    Hi spfautsch, Is there any recent firmware to...

    Hi spfautsch,

    Is there any recent firmware to test. I want to use latest and greatest. I am trying to figure some weird fueling issues and want to rule out any spark issues[The car does feel a bit...
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    I hope some video how to guide will be made this...

    I hope some video how to guide will be made this time.

    Meanwhile is it possible for the latest firmware to introduce some delay or lag at crank time. I think it is too subjective feeling, but the...
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    Just did some test run with the new firmware. No...

    Just did some test run with the new firmware. No issues and running strong. Didn`t push it much. Did some fine tuning to get rid of some lean conditions.

    It looks like the most important table for...
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    I really hope to test the update soon. It does...

    I really hope to test the update soon. It does sound really promising. WIth the possibility to dial on the fly some offset and test wot times with fatter and leaner dwell.
    It also opened the door to...
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    I make some indepth log analysis. Finding the...

    I make some indepth log analysis. Finding the biggest positive jump of about 16*. On high rpm converted to ms is not much and can be compensated. On very low rpm around 1000 it can be a little enough...
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    Never really measured the output, Just standart...

    Never really measured the output, Just standart stock engine with mods, cam, headers, CAI and other small pieces.
    We can use the maf reading to calculate power, but again not sure how acurate is the...
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    Some quick update. After I realized the...

    Some quick update.

    After I realized the suggested dwell is alittle too much to my taste and the overall soft feeling of the car, I build a new table from scratch, using some data from Gm...
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    That make it clear enough to do some math. ...

    That make it clear enough to do some math.

    That is what Gm will be targeting for the coils at 14volts.


    I see the current tables are way off of that.

    What I find best as coil response on my...
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    Can you give more details, how dwell build. How...

    Can you give more details, how dwell build. How it is looked up and what is the main table and if the map vs rpm is applied and when.

    I might try give it a shot with factory dwell settings if I...
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    SOme logs I managed to take. How can I tell...

    SOme logs I managed to take.

    How can I tell the commanded dwell by the log. Is the last row, the final dwell in usec.

    I feel that the dwell is not optimal right after starting. Very weak spark....
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    I didn`t need to copy to crank spark advance...

    I didn`t need to copy to crank spark advance table since it was the same for some reason.

    I hope to get some logs later today.

    Where I can get the index vs voltage table.
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    In preparation for some testing. Updated to...

    In preparation for some testing.

    Updated to latest version of firmware, It turns out I was running v 40.
    Enabled logging and engine position.

    On key on engine off, I got -40 temp and 5 for...
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    I did measured voltage at battery tons of time....

    I did measured voltage at battery tons of time. There is this phantom voltage drop inside the car. At battery and alternator is solid 13.6-14.2 volts.

    There is some drop at very high rpms. Suspect...
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    I would disagree with the out of phase 90 degree...

    I would disagree with the out of phase 90 degree theory.

    I looked at some graph first case is spark to be delivered in an advance which will result in 20* before middle of piston travel upwards on...
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    I didn`t try to start it immediately due to...

    I didn`t try to start it immediately due to checking all possible cause for it. Coils, cables opti logging.
    I didn`t try to reproduce, wanted to be sure for the cause first.
    If I try to reproduce ,...
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    I started the tuning season and finally managed...

    I started the tuning season and finally managed to find some bug.

    I exhausted all other option of failure but the controller.

    On some driving and a hard 2nd WOT pull, and let off, some random...
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    I got some good wheather, and did some cold start...

    I got some good wheather, and did some cold start ups.

    Fired great without issues on the first try.

    I also played with the tune, adjusting transient fuel tables. It was a short idle test but I...
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    I suspect you have an air leak in the evap...

    I suspect you have an air leak in the evap system. Canister, fuel tank, or somewhere in the middle. When you switch on the ccp it doesnt get pig rich at all, It even leans out more. based on blms....
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    If you switch the polarity of the pump it migth...

    If you switch the polarity of the pump it migth start working backwards. but the propellers are not designed for a reversed flow. There are other unknowns too. There is no cross-water passage in the...
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    The more miles I put on the COP system the better...

    The more miles I put on the COP system the better it gets. Last time I completely forotten that the system is present. It has a driving experience completely as stock, with beefed up spark.
    You can...
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    Finally have some time to update the thread. ...

    Finally have some time to update the thread.

    New caps installed and new firmware loaded. Still using 0.9.40 version. Starts every time without issues. I also went for some long drive logs.

    Car...
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    All 8 coils hooked up for the test. There were...

    All 8 coils hooked up for the test.
    There were total of 12 led events before it fired off and I got a led on second or third crank TDC which is pretty good.

    It only takes some time to fire up...
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    Did some test with new firmware and all seems...

    Did some test with new firmware and all seems good. I did one start with some idling till warmed up. Started within 1 second of cranking. Will do more tests of random cranking. On light throttle...
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