Engine management lights on again. Miss fire and charcoal filter faults.car on idol runs 900 and 1300 revs up and down anyone else had this. Help

Lumpy idle could be maf sensor gone..

Had the air flow sensor cleaned. Charcoal filter blew out. Some pipes blew out.

Thatll be your pcv valve. check if you open oil cap when running if no change then your pcv at fault. will cause hanging revs and revs rising by themselves and other problems.