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MAP sensor wiring help PLEASE!

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  • duracellttu
    replied
    Originally posted by COVID-19 View Post

    Now you’ve wired your MAP sensor as per my guide, it’s time to check it’s plumbed in properly and reading what it should. To check the reading we require a 3rd party tool called Testo. Testo is based the Ediabas API and provides realtime data. In order to use Testo you will need the following: A copy of Testo, available to download here Working INPA installation An OBD2 cable that is compatible with INPA Visual Studio C++ redistributable package, this is only required if you receive an error regarding ‘MSVCP100.dll’. Extract Testo to a folder and run the ‘Testo.exe’ executable.



    You should check yours and share the info 😀
    So....I just installed Testo on the laptop and collected some data from the MAP pressure and MAP voltage. Data was collected on "Realtime" refresh rate.

    Here is what I got. Initial dip in the curve is from startup.

    Click image for larger version

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    Here is the data revving up to 3k twice.

    Click image for larger version

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    Here is idle again and engine shutdown.

    Click image for larger version

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    Data is consistent with what Cubieman collected. What impact do we really think this has on the engine while running?

    terra / Cubieman - what refresh rates did you both collect data on?

    Leave a comment:


  • COVID-19
    replied
    ^ after playing with it for a little bit. I had to make sure on the files from Testo that the .ini file said [serial] port=COM9 And make sure my usb was set to com9 under control panel-device manager. Tried it again and it didn’t work then swap to another USB port and it worked.

    Leave a comment:


  • Cubieman
    replied
    Originally posted by kaiv View Post
    Forgive me if I'm dense but how to do I get to the MAP sensor screen on the current version of Testo?
    Looks like things have changed a bit since the instructions posted on Ecuworx.
    I followed the most current instructions on the Ecuworx page. But once you open it open make sure you check the box of whatever values you want displayed. In this case it would be MAP pressure/MAP pressure voltage

    EDIT: also I found that I had to change the USB cable to COM9 through device manager or testo would not work.
    Last edited by Cubieman; 05-17-2020, 05:37 PM.

    Leave a comment:


  • COVID-19
    replied
    Originally posted by terra View Post

    Hmm, seems like something that could be 3d printable. Doesn't really need to be metal. Something that's resistant to oils and whatnot like nylon would probably work well.
    I’m trying to find someone to do it but no luck.

    Leave a comment:


  • terra
    replied
    Originally posted by kaiv View Post
    Where are you guys getting those nice little adapters? I'm only finding them through UK vendors.



    There's also these larger sizes. I don't have a booster hose handy but I'm guessing the 12mm *should* work.

    https://www.lpgshop.co.uk/bosch-map-...-14mm-to-14mm/

    https://www.lpgshop.co.uk/bosch-map-...-16mm-to-16mm/
    Hmm, seems like something that could be 3d printable. Doesn't really need to be metal. Something that's resistant to oils and whatnot like nylon would probably work well.

    Leave a comment:


  • COVID-19
    replied
    Originally posted by kaiv View Post
    Where are you guys getting those nice little adapters? I'm only finding them through UK vendors.



    There's also these larger sizes. I don't have a booster hose handy but I'm guessing the 12mm *should* work.

    https://www.lpgshop.co.uk/bosch-map-...-14mm-to-14mm/

    https://www.lpgshop.co.uk/bosch-map-...-16mm-to-16mm/

    12mm but most packages are stuck in the UK. (Even from Ebay vendors) Last order I got was from an eBay vendor with expedited shipping and the price was a bit too expensive.

    Leave a comment:


  • kaiv
    replied
    Forgive me if I'm dense but how to do I get to the MAP sensor screen on the current version of Testo?
    Looks like things have changed a bit since the instructions posted on Ecuworx.

    Leave a comment:


  • kaiv
    replied
    Where are you guys getting those nice little adapters? I'm only finding them through UK vendors.



    There's also these larger sizes. I don't have a booster hose handy but I'm guessing the 12mm *should* work.

    https://www.lpgshop.co.uk/bosch-map-...-14mm-to-14mm/

    https://www.lpgshop.co.uk/bosch-map-...-16mm-to-16mm/

    Leave a comment:


  • Cubieman
    replied
    Originally posted by thegenius46m View Post
    I've had the kassel setup for about 2yrs but after seeing this thread, I'm planning to relocate mine to the brake booster area but am looking for the cleanest way to do this. I like Lang's option the best, but would probably need an additional adapter to connect to the oem map sensor. By doing what Cubieman did above, using the Kassel adapter and joining it to the vacuum tube would be the simplest, has anyone tested the effects of mounting locations? I read somewhere that the sensor needs to be mounted with the nipple pointed downwards for pressures to remain accurate.

    Lang adapter:

    https://store.langracing.com/s54-map...fi-conversion/




    CubieMan:

    That picture is of a different style adapter than the Kassel and was only in that location for testing purposes as the previous owner had already cut the brake servo line there.
    I later installed the MAP right by the brake servo, that is the cleanest installation as the cabin air filter covers it almost entirely.

    COVID-19 Has the adapter style you are looking for.
    Click image for larger version

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    Leave a comment:


  • thegenius46m
    replied
    I've had the kassel setup for about 2yrs but after seeing this thread, I'm planning to relocate mine to the brake booster area but am looking for the cleanest way to do this. I like Lang's option the best, but would probably need an additional adapter to connect to the oem map sensor. By doing what Cubieman did above, using the Kassel adapter and joining it to the vacuum tube would be the simplest, has anyone tested the effects of mounting locations? I read somewhere that the sensor needs to be mounted with the nipple pointed downwards for pressures to remain accurate.

    Lang adapter:

    https://store.langracing.com/s54-map...fi-conversion/




    CubieMan:

    Leave a comment:


  • duracellttu
    replied
    Originally posted by terra View Post
    My pictures are of the OE CSL sensor with the OE CSL rail FWIW
    Good to know!

    Originally posted by COVID-19 View Post
    https://www.ecuworx.co.uk/2016/03/15...g-a-csl-clone/
    You should check yours and share the info 😀
    I am wrapping up a vacuum line refresh this weekend. After I get everything buttoned back up I plan to check mine. I'll report back with the findings.

    Leave a comment:


  • COVID-19
    replied
    Originally posted by duracellttu View Post
    Great findings! What software are you using to read the MAP data?
    Now you’ve wired your MAP sensor as per my guide, it’s time to check it’s plumbed in properly and reading what it should. To check the reading we require a 3rd party tool called Testo. Testo is based the Ediabas API and provides realtime data. In order to use Testo you will need the following: A copy of Testo, available to download here Working INPA installation An OBD2 cable that is compatible with INPA Visual Studio C++ redistributable package, this is only required if you receive an error regarding ‘MSVCP100.dll’. Extract Testo to a folder and run the ‘Testo.exe’ executable.



    You should check yours and share the info 😀

    Leave a comment:


  • terra
    replied
    Originally posted by duracellttu View Post

    The last test case is to collect data from the OE / FSTT MAPS sensor location built into the air rail.

    Do we have any reason to believe the air pressure is that turbulent and the readings are accurate?
    My pictures are of the OE CSL sensor with the OE CSL rail FWIW

    Leave a comment:


  • duracellttu
    replied
    Originally posted by Cubieman View Post
    Test results:

    Test 1:


    Moving wire so it wasn't close to injectors keeping MAP sensor mounted on Kassel adapter.
    Click image for larger version Name:	20200503_141842.jpg Views:	3 Size:	175.5 KB ID:	20438 Testo:
    Click image for larger version Name:	20200503_142213.jpg Views:	3 Size:	120.5 KB ID:	20439

    Test 2:

    Moving MAP to a different location, I mounted it here because the previous owner had already cut into the Brake Servo hose.

    Click image for larger version Name:	20200503_150023.jpg Views:	3 Size:	173.3 KB ID:	20440
    Testo:
    Click image for larger version Name:	20200503_150327.jpg Views:	3 Size:	103.9 KB ID:	20441

    I think that says it all!

    Now this forms another question in my mind, is there any problems created by running the MAP in the "Kassel Location" with those oscillations?
    The last test case is to collect data from the OE / FSTT MAPS sensor location built into the air rail.

    Do we have any reason to believe the air pressure is that turbulent and the readings are accurate?

    Leave a comment:


  • duracellttu
    replied
    Great findings! What software are you using to read the MAP data?

    Leave a comment:

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