Left out parts im not sure about

Ask questions about DIY board assembly issues, fault finding and testing. (Covers all Megasquirt versions and board.)

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Bagged83dime
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Joined: Tue Aug 25, 2015 10:20 pm

Left out parts im not sure about

Post by Bagged83dime »

Ok putting an ms2 v3.0 together using the extra manual, setting it up for a 91 TPI 350. I used the manual to the testing point the used the "ms tpi how to" on DIYAutoTune for the specifics. I have just 4 empty holes on the board I dident see covered past the "set them aside" point. Just wanted to list them here and see if I need to do anything with them. R39, d8, q4, q20. Thanks
DaveEFI
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Re: Left out parts im not sure about

Post by DaveEFI »

They are all in the standard FIDL solenoid drive circuit. Usual reason to leave them out is fitting a high current driver, or using a stepper motor.
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Bagged83dime
Helpful MS/Extra'er
Posts: 96
Joined: Tue Aug 25, 2015 10:20 pm

Re: Left out parts im not sure about

Post by Bagged83dime »

Ok we are using a stepper motor so sound like I'm all good, thank you
Six_Shooter
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Re: Left out parts im not sure about

Post by Six_Shooter »

R19 would also be superfluous as well.

However, you could install this circuit and use it as a generic output to drive something like a cooling fan relay, or shift light, etc.
Tha Toy: 1973 Datsun 240Z Turbocharged, and loads of fun, now MS'd
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