any active members into mega/microsquirt?

Discussion in 'Throttle bodies & non-OEM ECUs' started by pigbladder, Nov 22, 2019.

  1. pigbladder Forum Addict

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    ive got a mk2 polo gt (3f) that no one can get running right , im considering microsquirting it vs throwing more money at parts

    wondered if theres any members into it that could talk things over with me

    orig system has an AFM with temp sender

    am i along the right lines thinking-

    wedge afm open and use its inlet air temp sensor /or straight pipe and scrap yard sensor
    use current fuel pump relay
    use dizzy hall sender to give a signal
    use current coolant temp sender
    use current coil and tci
    use current tps

    then once wired i can get ign map based on my spec

    where do i get the basic start up fueling from?

    then ride around with wideband and let it self tune ?

    its just a fairly basic spec car , not planning to be a race car etc

    any ideas /input please
     
  2. pigbladder Forum Addict

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    bump any members i can chat with please

    ordered a microsquirt today and sure i will have questions
     
  3. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    Been a long time since I built those!
     
  4. pigbladder Forum Addict

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    this one is factory built so takes away a bit of risk

    basicly need to copy your 8v thread but translate to polo , might need a few pointers on wiring

    did you map that with the wideband then just run it off the map with no o2 input ?
     
  5. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    Takes away the risk from joe bloggs.

    "wideband" feedback came after.

    Bearing in mind I have been tuning engines, before EFI, most cars were mapped open loop as you would on a dyno, but with independant lambda measurement, feeding back to determine if you got the exhaust mixture where you desired it.
     
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  6. pigbladder Forum Addict

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    toyo does the vw dizzys need a pull up resistor ? getting mixed advice

    its the 3f engine same as a g40 /py dizzy
     
  7. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    I still use the dizzy hall in the WOLF R.
    Been a while since I looked in that ECU though. I do it still runs.
     
  8. pigbladder Forum Addict

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    dont suppose you know the values for these toyo> or are they in the tunerstudio already

    058905379_grande.jpg thumb.jpg
     
  9. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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  10. pigbladder Forum Addict

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    perfect

    just going through tunerstudio ticking off the boxes /options ...unsure of these with the mk2 coil /tci

    fuel inj dead time /batt voltage correction?

    cranking dwell,dwell type, nominal dwell,spark duration


    any ideas please
     
  11. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    I will have to look a MK2 8v calibration to answer the above.
    Can do so this evening.
     
  12. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    For the Digifant TCI-h it is fixed dwell.
    Spark duration not sure what you mean.
    Injector opening time 1.0 secs to start with
    Batt/volt correction 0.2 ms.v
     
  13. pigbladder Forum Addict

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    is this easier ...spark duration shown here on the right , also what do i put in the trigger angle offset ?

    any other vital settings before start up ? IMG_20200204_185105.jpg

    IMG_20200204_184503.jpg
     
  14. 2swe New Member

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    spark duration is time required for the spark to complete, after this time period the coil can be charged for the next spark. you can leave it at 1ms default.

    trigger angle offset is crank position before TDC where the ecu receives signal from hall sender.
     
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  15. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    8V yes?
    So a dizzy with plug leads yes?
     
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  16. pigbladder Forum Addict

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    toyo yes

    8v digi polo with mk2 style coil and tci...basicly same as your old 8v golf but its a polo /1400

    stock dizzy , tci , inj , coolant sensors and this one had a factory tps...delete afm , running off orig relays and will have wideband

    thanks all
     
    Last edited: Feb 5, 2020
  17. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    If like one of my old cars, then use the settings I gave as going in points. It will fire up.
     
  18. pigbladder Forum Addict

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    decided to add a map sensor , will plumb that in and report back
    thanks so far
     
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  19. pigbladder Forum Addict

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    so what ? set it what base timing was on the stock car ?

    thanks again
     
  20. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    That is an offset for the trigger. Like globally moving a dizzy.
     

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