Strange Current waveform?

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03 Jul 2021 13:44 - 03 Jul 2021 13:50 #49771 by timothy.horne
Strange Current waveform? was created by timothy.horne
 Hi, Can anyone tell me what this strange fuel injector current waveform means?  I tested all 8 injectors on a 1996 Mercury Grand Marquis and 6 of them looked normal, but injector #'s 5 and 6 looked like this.

Thanks
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Last edit: 03 Jul 2021 13:50 by timothy.horne. Reason: Trying to add pictures

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03 Jul 2021 14:28 #49772 by Matt T
Replied by Matt T on topic Strange Current waveform?
My guess is ignition noise.

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03 Jul 2021 15:31 #49774 by timothy.horne
Replied by timothy.horne on topic Strange Current waveform?
Thanks.    That could be, these are the two fuel injectors that are closest to the ignition coil on that bank.   I was able to get a normal current reading on the two fuel injectors closest to be ignition coil on the other bank.   The car has an intermittent misfire that I am trying to track down.

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