I just did KOER test and I find two codes
311 AIR system inoperative during KOER (Bank number 1 with dual heated oxygen sensors)
314 AIR system inoperative during KOER (Bank number 2 with dual heated oxygen sensors)
What this mean, and I don't have check engine light on
311 AIR system inoperative during KOER (Bank number 1 with dual heated oxygen sensors)
314 AIR system inoperative during KOER (Bank number 2 with dual heated oxygen sensors)
What this mean, and I don't have check engine light on