E46 320d M47(136bhp) INPA results and codes - please help - Page 2

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Thread: E46 320d M47(136bhp) INPA results and codes - please help

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    #11
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    Thanks the END for your advice and quick reply, Funny you say that, because when I read the codes today and cleared them by the way :-( one of them said Air Mass too small , does that make any sense to you? although I cleared it and then took it for a drive the error didn't come back. I did take the Air Mass off last week and cleaned it and popped it back on. Hopefully all that makes sense?

    Cheers again - Richard
     
     

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    #12
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    Quote Originally Posted by TheEnd View Post
    Yep, INPA has lots of bugs and half truths inbuilt.
    In the factory, people probably understood and ignored things like when a wrong scale was used for live data, and the ECU is always watching so unless the ECU puts up a fault code, don't worry too much about data if it looks wrong.
    Bit off topic The End, but collecting a 55 plate 525d tomorrow, what would suggest in the way of a mild map for say 200-210 bhp? Is that something you could provide
     
     

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    #13
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    Guys :-) - Good morning

    I've noticed when I disconnect the MAF sensor from the car (This is on tick over) there isn't any change to the way it ticks over ? Should the car start if the MAF is
    disconnected and if it should start should you see/hear a difference with it connection off or should I take it for a drive to see if there's any difference?

    Only reason I'm going down the MAF route is because I was doing a MPG trial yesterday :
    Put in £10 diesel @ £1.50 = 6.66666 Litres = 1.5 gallons- Done 37 miles before the light came on again, The light came on two days ago and I probably drove an extra 10 miles with the light on and on tick over on the drive doing INPA I may of used another 3 miles approx - 37+10+3 = 50 miles for 1.5 gallons = 30 ish MPG.

    Many thanks- Richard

    analog1.jpg

    Could this be the issue with MPG aswell guys ? the Injection actual and injection start ? seems the values are out with the ! mark before the value?
     
     

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    #14
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    Afternoon all

    Any chance someone can take a look at the above screen shot and let me know what Injection start and Injection Actual are and why I have an ! mark in front of the value?

    Cheers all

    Rich
     
     

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    #15
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    Quote Originally Posted by fbs1000 View Post
    Afternoon all

    Any chance someone can take a look at the above screen shot and let me know what Injection start and Injection Actual are and why I have an ! mark in front of the value?

    Cheers all

    Rich
    It is only available on DDE 4.0 and 5.0, yours is an older DDE 3.0 which is not common rail and pressure/timing of the injectors is driven from the pump and not the timing of the opening of the injector
     
     

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    #16
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    Matthew - Cheers I understand as Slowtech has told me the same, however the reading of Injector Start and Injector Actual are from DDE3.0 and as you can see they both have an !mark before the value, So I was wondering what does this mean? does something need changing or what?

    Cheers again
     
     

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    #17
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    That's the kind of stuff you shouldn't need to worry about, it is likely that the scale in INPA might be wrong if the ECU isn't putting up any other codes.

    You might find that value changes depending on temperature.
    The kind of people who used INPA would probably be fine just looking at the raw data and they'd know what it means.
    There isn't anything in your grab above that would be a cause for alarm just yet.

    Matt - A mild remap is possible but I can't guarantee any figures, ie, I wouldn't be able to target it for a specific BHP, it would be more a case of holding back some of the power maps to 75% or so, and slightly lower boost.
     
     

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    #18
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    Quote Originally Posted by TheEnd View Post
    Matt - A mild remap is possible but I can't guarantee any figures, ie, I wouldn't be able to target it for a specific BHP, it would be more a case of holding back some of the power maps to 75% or so, and slightly lower boost
    That makes sense, I don't want to unleash the wroth of God on my clutch but would like a little more juice and agreed there is no need to go for a target BHP but don't want the full 250bhp, just doesn't make sense on a car that I need for work and need to be 100% reliable
     
     

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    #19
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    Thanks The End :-) - Seems kinda pointless then having INPA if I can't rely on the data lol :-) , No codes errors are showing and all seems to be driving fine.

    Thanks Guys - Have a great weekend - Rich
     
     

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