SV: Non Distructive testing (letting the smoke out)

[Roland Johansson]

If you place a finger on the drive transistor/or several and
start it with normal number of injektors, simulate full throttle
for longest on times. The transistor/s should get wam but not
burn your finger in about 10-15 minutes time, try with bigger
number of injektors, if you burn your finger you will be closer
to the limit, probobly over if out temp are high

This is not scientific but could give you a good estimation if
it will work. If the drivers get what you think is to hot, try
add a old computer fan and test again.


Roland Johansson
Scirocco 1,6l TIC -82



> Nother thing, what would be a "safe test" for how long
overloading
> a driver would take.  If I wanted to see if something was
going to
> work on injector drivers, how long in running them would it
take to
> see if they fail?.
>   I have two items to test, running 16 injectors off of a 8
cyl TPI ecm
>   Running 4 P+H injectors where 2 are normally fittted.
> I would figure if the ecm gets only warm to the touch that
would be one
> clue.
> Cheers
> Bruce