koer test code question
#1
koer test code question
so i ran a koer on my car today and 2 codes came up... egr no flow which im not worried since it doesnt have the vacuum line hooked up... then i got o2 sensor rich bank 1.... the car is running fine should i just replace that one o2 sensor or do i have a bigger issue???
thanks for the help
thanks for the help
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