injector signal
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Joined: Jan 2008
Posts: 69
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From: Salt Lake City UT
injector signal
what is the signal that pulses an injector. is it dc or ma signal? i want to figure out if i have an injector not opening without having to remove all of them. i have a signal generator to use as a test tool.
Le Mans Master
Joined: Jul 2007
Posts: 5,043
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From: Tampa Florida
It is DC but you don't need a signal generator to get it to fire just apply 12 volts across the injector coil and it should "pick" the solenoid up and release fuel as long as the coil is energized/picked. Only apply voltage (even with a signal generator)to the injector for a second or less or you'll fill the cylinder with what ever fuel you have in the fuel rail....that's a lot of fuel. If you have a fuel pressure gauge hooked at the fuel rail during the time of testing you should see the pressure drop once the injector "opens". To see the actual injector waveform you'll need an "o" scope.
Here is a link for a site with technical information for an injector waveform: http://automotivetestsolutions.com/i...rWaveforms.htm
Here is a link for a site with technical information for an injector waveform: http://automotivetestsolutions.com/i...rWaveforms.htm
Thread Starter
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Joined: Jan 2008
Posts: 69
Likes: 0
From: Salt Lake City UT
thank you for the help. i would rather just buy a new set of bosh III injectors. but after a brain sugery and med bills the car kinda sits in the garage. this may be my winter project. thanks again.
