P0431 MIL On. Dip in RPM at Idle
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P0431 MIL On. Dip in RPM at Idle
P0431 MIL On. Dip in RPM at Idle. Took my car to the shop. They told me there is a leak in the CAT Bank 2. Just want to make sure whether the leaking CAT is causing the dip in RPM at Idle. Thank you.
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