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Re: P0641 VREF 1 low
Posted to Technical Theory Forum on 8/2/2018 2 Replies

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I already closed the window I had that diagram on but IIRC there were many more sensors on the 5V1 than 5V2, so it's possible 5V2 isn't "as easily affected" by the wiring problem you had.....and of c... Login to read more.

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