Rough Idle & P0171 + P0174. Vacuum leak?

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Rough Idle & P0171 + P0174. Vacuum leak?

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02-20-2018, 07:42 PM

#11

geraintthomas

Registered User

Join Date: Nov 2015

Location: South Wales, UK

Posts: 852

Quote:

Originally Posted by Anker

If you couldn't get the oil cap off while the engine was running you have a failing AOS. Get it replaced before you destroy the engine.

And would a failing AOS let in air, giving the lean CEL's? Could this be the problem for everything?

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