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International Automotive Technicians Network
Re: Sante fe gremlin
Posted to Technical Discussion Forum on 6/22/2023

Something is wrong w/ bank 1.

Look at both O2 sensors on bank 1. Yes, sometimes bad O2s can cause a misfire, especially if thtey are reading lean. Compare B1 to B2 and look for the odd man out.

Read LTFT B1 and B2. Login to read more.