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Discussion Starter #1
CAN ANYONE HELP PLEASE?

Acura MDX 02 failed emmision test for misfire codes (P0300, P0301, P0302, P0303, P0304, P0305, P0306) check engine light n VTM4 is on.

Mechanic changed EGR ($340) n cleaned all passages but lights won't come off n misfire code still there. Now mechanic is saying 4 coils must be replaced ($1400). I don't think mechanic knows what he's doing.

here's some suggestions from other group post:
- tune up using OEM
- change denso plugs
- adjust valves
- check injector plate
 

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what's your mileage? When were the valves last adjusted (if ever)?
 

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It might be worth taking it in to an acura or cheaper to a Honda dealership and paying them to diagnose the issue. You don't have to fix it there but they'll tell what the issue is. Honda charges $100 to diagnose an issue at least the dealership near me and they do a great job. I can recommend them if you are in the seattle area..
 
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