Injector doesnt close?

[wewerica]

pretty much. but do check from the main board that the microsquirt module plugs in to

To be honest I couldnt see anything between edge connections and microsquirt module exept leads to mucrosquirt module.

Connection from edge connector to mucrosquirt is ok checked with multimeter buzz.


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[wewerica]

I've figgured it out.
transistor U7 (VND5N07) died.
I've replaced and car runs again like it was.
Thanks everyone for assistance

[Blown88GT]

...transistor U7 (VND5N07) died...

Good job figuring that out.
So, the Microsquirt Module failed? They rarely fail.
http://www.microsquirtmodule.com/mod_hardware.htm
VND5N07 is superceded by the VND5N07-E
Where did you obtain a replacement part?
Found another thread where they kept blowing the VND5N07 on the Module.
http://www.msextra.com/forums/viewtopic ... 07#p458654

If it happens again try this part: VND14NV04
Just search this forum for: VND5N07

[wewerica]

...transistor U7 (VND5N07) died...

Good job figuring that out.
So, the Microsquirt Module failed? They rarely fail.
http://www.microsquirtmodule.com/mod_hardware.htm
VND5N07 is superceded by the VND5N07-E
Where did you obtain a replacement part?
Found another thread where they kept blowing the VND5N07 on the Module.
http://www.msextra.com/forums/viewtopic ... 07#p458654

If it happens again try this part: VND14NV04
Just search this forum for: VND5N07

Yes Microsquirt module failed
but its ok, moving forward

I have Toyota 4AGE engine and its firing order is 1-4-3-2, maybe inj2 output was heating a bit? I will get some heat shields for both transistors just in case.

I've got replacement part from ebay.co.uk, shipped to Serbia where I live.

Now when this happened I wanna go sequential injection.
Can I get 2x VND14NV04 for the sequential injection board? WIll it work with VND5N07? Or to get VND5N07-E?

Thanks in advance

[Blown88GT]

...Now when this happened I wanna go sequential injection.
Can I get 2x VND14NV04 for the sequential injection board? WIll it work with VND5N07? Or to get VND5N07-E?...

https://www.diyautotune.com/product/diy ... ction-kit/
I don't know which ones it comes with. JBPerf developed the sequential injection board & is on this forum, ask him.
It was his recommendation to use the VND14NV04 in this thread.
http://www.msextra.com/forums/viewtopic ... 07#p458654

[racingmini_mtl]

The sequential injection board comes with the VND5N07 (or VND5N07-E which is the exact same thing but lead free) because that's what is on the Microsquirt module. You need to have 4 identical injection drivers since they have an impact on the actual dead time value.

So if you change the Microsquirt module drivers to VND14NV04, you would need to do the same for the external drivers.

Jean

[wewerica]

@Blown88GT thanks for info

The sequential injection board comes with the VND5N07 (or VND5N07-E which is the exact same thing but lead free) because that's what is on the Microsquirt module. You need to have 4 identical injection drivers since they have an impact on the actual dead time value.
So if you change the Microsquirt module drivers to VND14NV04, you would need to do the same for the external drivers.
Jean

Tnx Jean

so VND14NV04 will have different dead injector time then VND5N07? Can you tell me what's the calculation? Thanks

I will see what to do in the future.

[racingmini_mtl]

so VND14NV04 will have different dead injector time then VND5N07? Can you tell me what's the calculation? Thanks

There is no magic number; you need to measure it. It will be dependent on your injectors.

Jean

[wewerica]

so VND14NV04 will have different dead injector time then VND5N07? Can you tell me what's the calculation? Thanks

There is no magic number; you need to measure it. It will be dependent on your injectors.

Jean

Thanks for the info.
I've seen that someone made diy sequention injection board but cannot find it now maybe its some old post or something.


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[Blown88GT]

...I've seen that someone made diy sequention injection board but cannot find it now maybe its some old post or something...

Probably can't see it on your phone.
5th post in this thread (the one you're in now).
Again: https://www.diyautotune.com/product/diy ... ction-kit/

[wewerica]

So if you change the Microsquirt module drivers to VND14NV04, you would need to do the same for the external drivers.
Jean

Hi Jean,
I was able to find VND14NV04-E in my country its around 5$/each.
Can I replace VND5N07 with this one?

so VND14NV04 will have different dead injector time then VND5N07? Can you tell me what's the calculation? Thanks

There is no magic number; you need to measure it. It will be dependent on your injectors.

Jean

Can you help me figure it how to measure it? Thanks
I have 248cc injectors

[jsmcortina]

https://www.youtube.com/watch?v=lJgi8l-2XG4

[wewerica]

Thank you jsmcortina I will give it a try.

I couldn't find anyone on the forum post results of VND14NV04.