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Injector waveform

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01 Dec 2019 16:22 #35490 by jose.alers
Injector waveform was created by jose.alers
1996 Toyota Corolla 1.6l engine. I have a cylinder #4 misfire. The owner has replaced spark plugs. Wires. Distributor. Coolant sensor. Injectors were cleaned. I got a chance to scope the injectors and got this weird pattern. I think the ecm is going bad.
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01 Dec 2019 17:56 - 01 Dec 2019 17:57 #35494 by Chad
Replied by Chad on topic Injector waveform
The over-all pattern of the wave looks good, to me. The circuit has current limiting. How does it compare to other cylinders? One thing I CAN'T see is pintle movement. Can you take another capture, with a 10ms screen and a one, maybe two, amp scale?

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Last edit: 01 Dec 2019 17:57 by Chad.
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02 Dec 2019 21:21 #35528 by jose.alers
Replied by jose.alers on topic Injector waveform
I will try tomorrow. Don't know why my Modis freezes up. I have to restart it once in a while. I've had it for a few months . I purchased it brand new.

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