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Will a p1521 code, wrong oil, keep a vehicle from receiving a state inspection in counties that require emissions testing? I know it a p-code but its not an emissions code(O2 sensor, gas cap)..Just wondering..06 Ram 1500 5.7 Hemi...
There was a software flash to keep that code at bay a while back. Too sensitive. But I think the flash just stopped the CEL from coming on. Not exactly sure.