Injector drivers (Onboard Logging Trigger by KPA)

[shaodome]

Added for the next alpha.

Any feedback on the last stuff I added for you ?!?

James

The night we were trying it the car killed a driver in the MS3Pro box when hitting boost cut. We sent it back to DIY and they upgraded it with much more robust (19amp, 35v) drivers and added flyback diodes. We have a dyno session scheduled for Saturday morning which is where we will be testing the new features. The owner didn't want to risk trying it with the other Pro box we have for fear of damaging that one too.

I was talking this morning with Matt because I can repeatedly blow drivers at will on the 3x cards (and so far once on the MS3pro). If the car hits boost cut or the afr safety system activates (all using spark cut as the method) several times in a short period it will kill the injector driver. It's happened around 10 times now so I'm working with them as I have a log/msq from when it happened again last night.

[Reverant]

What injectors are you using??

[shaodome]

What injectors are you using??

This has happened so far with the following injectors in the same fasion:

Bosch Ev14 (both ID2000 and Fic 2150)
FIC 750s (siemens)

[Reverant]

Wait, these are high-impedance, right?

[shaodome]

Wait, these are high-impedance, right?

yes all of them.

[Reverant]

That's definitely weird. Have you checked the resistance on these injectors? Generally the EV14s are around 12 Ohms, but maybe these particular ones are a little lower?

[shaodome]

That's definitely weird. Have you checked the resistance on these injectors? Generally the EV14s are around 12 Ohms, but maybe these particular ones are a little lower?

Of course

I'm working with Matt right now on a testing procedure that DIY can try in order to reproduce my results.