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Noid light construction
Posted: Wed Nov 10, 2010 2:01 pm
by dochka
Anyone knows what electronic parts i need no assemble a noid light to check if my low z injectors are getting a signal;
I know about the 12v lamp and others, but just interested in this option
Re: Noid light construction
Posted: Tue May 24, 2011 10:23 am
by akeboshi
if you are just wondering if they are opening or not, you can just listen to them though a screwdriver (or automotive stethoscope). the z injectors chatter really loud so you might not even need that.
Re: Noid light construction
Posted: Tue May 24, 2011 3:42 pm
by trakkies
dochka wrote:Anyone knows what electronic parts i need no assemble a noid light to check if my low z injectors are getting a signal;
I know about the 12v lamp and others, but just interested in this option
IIRC, they're just an LED and suitable series resistor. Roughly 1000 ohms should be fine.
A dwell gauge - used for checking points gap electronically - is very useful for injectors as it shows the mark space ratio. Some auto DVMs have one built in - or they often come up for pennies at autojumbles.
Re: Noid light construction
Posted: Fri May 27, 2011 11:54 am
by flatbill
I got a whole set at O"Reiley's for around $20. Billk
Re: Noid light construction
Posted: Sat Jun 04, 2011 10:27 pm
by akeboshi
i actually had to check for signal to one of my injectors and i just used an led from a diesel truck (24v) and it worked great. it has a resistor on it but i dunno what the resistance is (didnt measure). works great, you can also just use an automotive test lamp also. just a quick 2 cents
marcus