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Fuel injector signal..

847 Views 4 Replies 2 Participants Last post by  Mantist, 
Mantist
Hi,

I want to know what the signal (waveform) is like on the fuel injector. I also would like to know where the signals originate. Thanks.
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E
It comes from the Motronic ECU. I haven't put the scope on it, but it's basically a PWM square wave. {edit} The injectors receive constant +12V power when the key is on, and the Motronic opens and closes the ground, generating the square wave pattern.
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Mantist
Thankyou efair!

Where is the Motronic ECU? Pinouts for each injectors?
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E
I'm not sure, what's your VIN and I'll look it up. What kind of problem are you trying to solve BTW?
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Mantist
I found a solution. No need to look it up. Thanks.

I am trying to experiment the effect on mpg with a rolling fuel shut-off.
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