Injector testing?

For discussing injector selection, manifold modifications, throttle bodies, fuel supply system design and construction, and FIdle valves and IACs.
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65looter
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Injector testing?

Post by 65looter »

Could someone explain how to test the injectors, ie are they getting power, stuff like this.

Thanks for your help (yes I did search, but did not see what I was looking for).

Stephane
renns
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Post by renns »

You could use a voltmeter to check for power at the injectors, or wire 12v test lights in place of the injectors. Note that the injectors need to be powered via a switched 12v supply, and are intermittently grounded by the Megasquirt to squirt fuel.

Roger.
1979 Mazda RX-7, running MSnSExtra029L for fuel and spark control on a turbocharged, intercooled, and
(of course!) injected 13B rotary.
65looter
Experienced Squirter
Posts: 157
Joined: Mon Mar 27, 2006 5:56 am
Location: London
Contact:

Post by 65looter »

thanks for your help, will try that later on.
Erik88GT
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Joined: Tue May 25, 2004 10:18 am

Re: Injector testing?

Post by Erik88GT »

65looter wrote:Could someone explain how to test the injectors, ie are they getting power, stuff like this.
The correct way to test this is with a noid light. I'm not sure a local parts store carries them (more of a snap-on, matco type of tool), but you should use one that is of similar resistance/impedance as the injector.
'65 Mustang, MS I
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