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Re: P2127 code on 2007 Saturn Ion 2.2
Posted to Technical Discussion Forum on 8/19/2020 9 Replies

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The 5 volt reference is "modified" or "changed" by going through the resistor that is integral to the APP sensor. The 5 volt reference is connected to the APP sensor terminal and as the voltage is ch... Login to read more.

9 Replies Received (View Replies)