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cosecon

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    Megasquirting my 5.6 v8

    in MS-Megasquirt/Jolt

    Posted

    Where is the best place to get a quantity of junior timer plugs from?

    After some searching a few months ago I found these:

    http://www.simtekuk.co.uk/index.php/automotive_connectors/junior_power_timer_connectors/?k=:12:1630:

    these where the best quality I found.

    Unfortunately they have no Grey and no Blue in stock. If you order from them, do not forget to get the boots (sold separately but really strong and worth the money)

    This is were I got the blue : http://www.ebay.co.uk/itm/BLUE-Fuel-injector-Cosworth-WTS-Sensor-with-boot-Bosch-EV1-2-pin-Mini-Timer-Plug-/121107629087?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item1c3293c41f

    And you can get from same guy black ones, although I believe simtek is better quality.

    http://www.ebay.co.uk/itm/4-x-Fuel-injector-Sensor-plug-Lancia-Ducati-Golf-Fiat-BMW-Vauxhall-/121118560664?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item1c333a9198

    Another journey to MS1 conversion

    in MS-Megasquirt/Jolt

    Posted

    Acording to Megamanual

    Quote "Easy Therm

    If you are using non-standard coolant and/or air temp sensors with a MS-I™ controller, you must create “.inc” files that are essentially look-up tables for your MegaSquirt® EFI controller to relate resistance to temperature (For MS-II™ you can change the curves directly in TunerStudio, with no other steps necessary). These files must then be compiled into one .s19 file, and then down loaded to the MegaSquirt® controller. EasyTherm makes it very easy to use “non-standard” temperature sensors with the MegaSquirt® controller. It does three things that otherwise can be a bit of a pain:

    1) It automatically creates the .inc files from 3 temperature/resistance pairs. Entry in degrees Fahrenheit or degrees Celsius is allowed. Non-standard bias resistor values can be entered.

    2) It creates the .s19 file using the above data - you do not need a compiler!

    3) It downloads this .s19 file to the MegaSquirt® controller via the serial link (once R6 is shorted to enter bootloader mode), and reboots the MegaSquirt® - so you do not need to mess with Hyperterminal.

    Do not forget that you need to copy the applicable .inc files that EasyTherm creates to your MegaTune directory after a successful down load.

    Note that you do not need EasyTherm with MS-II, you can calibrate the thermistor tables directly in TunerStudioMS (under 'Tools') without reloading code." Unquote

    I can understand these 3 files are needed for the megatune to display correctly.

    This is also confirmed by http://www.extraefi.co.uk/oem_temp.htm

    Quote "Stage 3: MegaTune / Tuner Studio

    After installing MegaTune or Tuner Studio, copy your generated inc files from the above stage (c:/programfiles/easytherm/)
    into the directory
    MegaTune users: c:/programfiles/megasquirt/Car1/mtCfg/
    Tuner Studio Users: mydocuments/TunerStudioProjects/Car1/inc/

    airdenfactor.inc - That is for the inlet Air Temp sensor
    matfactor.inc - That is also for the Air temp sensor
    thermfactor.inc - This is for the coolant temp sensor

    easydir.JPG

    Your display should now correspond to the temperature your sensors are at.
    If you had saved the config (msq) file before doing the above then re-load it now, before plugging in the coil packs." Unquote

    From my observations, the rover v8 and the GM sensor are different when cold. At working temperature, the reading is almost identical.

    Another journey to MS1 conversion

    in MS-Megasquirt/Jolt

    Posted

    I will do the following test durring the weekend.

    1.set the temp pot on the stim to one specific value. Measure also resistance with ohmmeter

    2. write down the megatune value (original firmware)

    3. Flash with rv8 firmware

    4. check temperature. If temperature is the same....problem. If temp changed then all ok.

    Any objection to this simple experiment? Any different approach?

    Another journey to MS1 conversion

    in MS-Megasquirt/Jolt

    Posted

    Hi to all, I am doing my studying for the programming of the ms1.

    I have the following question:

    I am planning to use the hotwire coolant temperature sensor.

    According to megamanual the ms1 direct compatible sensor is

    Degrees F Degrees C Ohms

    -40º -40 100,700

    0º -18 25,000

    20º -7 13,500

    40º 4 7,500

    70º 21 3,400

    100º 38 1,800

    160º 71 450

    210º 99 185

    The hotwire v8 is :

    -10C (14°F) 9100-9300 Ohms

    0C (32°F) 5700-5900 Ohms

    20C (68°F) 2400-2600 Ohms

    40C (104°F) 1100-1300 Ohms

    60C (140°F) 500-700 Ohms

    80C (176°F) 300-400 Ohms

    100C (212°F) 150-200 Ohms

    To my understanding, from what I have read I need to run easy-therm for MS1 in order to build a translation table.

    Is this correct or I have miss-interpreted the instructions?

    If I do not reprogram, I believe the gauges in megatune will show incorrect temperatures.

    Building an MS1 board

    in MS-Megasquirt/Jolt

    Posted

    Did you check to see the 12v (9v with battery) and 5v on the ms board?

    I did not use a cable, I just removed the small securing nuts on the stim db37 and plugged directly to the ms.

    If you have the correct voltages, check the RPM switch on the stim, maybe you have no rpm signal. No rpm signal, no injection.

    Help to megasquirting my 90 4.6l froggy

    in MS-Megasquirt/Jolt

    Posted

    When I was installing megajolt, I tried a friends Prolific PL-2303 bought in Greece for 20-25 pounds approx. It worked but with some disconnections from time to time. I bought a Prolific PL-2303 from ebay china...the moment you plug it to the laptop...reboot.

    I then decided to get out my ancient Toshiba 166 MHz Pentium with 96 Mb Ram with a RS232 and I just changed the battery cells . It works nicely and I don't care if it falls down...and by changing only the cells with Ebay cheap ones, I also have a good 2 hour battery.

    Another journey to MS1 conversion

    in MS-Megasquirt/Jolt

    Posted

    Dirty, here's my current layout - this removes all the bits you don't use with a standard Rover V8 + EDIS, which then makes some of the other mods much easier. You must be aware that it is quite sneaky though, for example taking 12v from D3 and routing it through unused tracks from the VR sensor circuit, so if you use this you need to be VERY careful and consult the circuit diagrams before making any changes to it. Put it another way: if you do this and smoke comes out, it's not my fault!

    v3components_minimal.png

    I guess you are right...much easier with your layout.... much much easier!!! next time I should know better...

    Another journey to MS1 conversion

    in MS-Megasquirt/Jolt

    Posted

    Ah, you've made it hard for yourself by fitting *all* the components rather than only the ones you need.

    Actually as far as I know, the only "optional" components according to Msextra manual were the r37 r38, which I fitted since I had them available and I liked the view of the full heatsink bar... :rofl: Althought I do not like this sticky tape mounting on the heatsink and I will replace with some throughole TO220 heatsink ones I found.

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