CODE 172 ego not switching lean exhaust bank 1
The 172 code on my Snap On Modus Edge says "172 - EGO NOT SWITCHING, LEAN EXHAUST, BANK 1"
Then I also get the 176, says same thing only Bank 2.. so I have almost 90k on my '94 Crown Vic, just serviced the trans, just changed my fuel filter and cleaned the MAF sensor. I have new O2 sensors, it only requires 2, I need to put them in and see if the issue goes away.
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