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P2 fuel pump control model PEM control waveforms

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P2 fuel pump control model PEM control waveforms

Post by abscate » Sat Jan 25, 2020 2:18 pm

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Re: P2 fuel pump control model PEM control waveforms

Post by Tomaszabc » Wed Jan 29, 2020 12:58 am

If the pump is getting about 12 V from TCM yellow wire and PWM is about 2.7 V to 0 like in my case, that means fuel pump ground is shortened. Some electricans do this for temporary fix when PEM failure happens.

My case:

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