Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
emmis.1 (17)is the upstream emmis.2 (20)is for the downstream.
The Dtc is for the upstream o2 the one closest to the manifold.
If you replaced sensor 2 it will not correct the p0030
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How is the equinox going?
Gotta love working for free Thanks