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FeetDry
October 12th, 2024, 04:53 AM
I have a GM 411 PCM that I'd like to use to do an injector balance test. I'd like to use the V2 to pulse individual injectors a fixed number of times. Something like: 50 pulses at 100Hz and 50% duty cycle. With the engine not running, I'd like to do this one injector at a time to compare fuel delivery results.

I've seen this done with the GM Tech2. I'm not seeing any mention of this in the EFI manual. I found a forum thread from 2008 that mentions a balance test, but nothing else.

Can the V2 do a balance test? Where can I find info about it?

Thanks

dian
October 31st, 2024, 06:55 AM
i guess the v2 cannot do this (like e.g. a motec).

you can get an unexpensive pulse generator ($5 ?) and a fet driver to pulse injectors.

FeetDry
October 31st, 2024, 09:51 AM
It appear the balance test option was removed around 2011. Other threads suggest it was not working properly.