What we need to do is pull up your data stream and select o2s11 and o2s21 sensors, then get a can of brake clean or throttle body cleaner and spray the base of the intake manifold then look at the data stream of the sensors. They will peg to 1.0 volt with the presence of a vacuum leak while you sprayed the chemical at the intake. More than likely you will need to replace the upper intake gaskets/o-rings, and the spacer gaskets/o-rings as well. I've done tons and tons of them! Your freeze frame data will probably show a low coolant temperature when the codes were set because the gaskets leak worse when you first start the vehicle.
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Monday, July 27th, 2020 AT 8:22 AM