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Re: Ignition coil low reference circuit
Posted to Technical Theory Forum on 6/19/2016 5 Replies

A [2011 GMC Terrain SLT, ECM/Inputs/Outputs Waveform] [...trimmed text...]

Yes. All the computer does is operate the driver transistor which is located inside the ignition coil. The rest of the ignition coil is just like... Login to read more.

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