Hi,
As Above I have a 2011 Insignia in with Cylinder Pressure Imbalance trouble Codes, I Know that There is a software update to help fix this Problem,
I have Gm mdi and recently started using it, So basically want to know how I go about preforming Software update of engine ecu,? I have security access as I requested a few weeks back, Guessing sps Programming..?
Any Help Appreciated,,
Thanks
Kieran
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