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Engine is running rough; wont accelerate smoothly real

engine is running rough...

engine is running rough; wont accelerate smoothly real sluggish. rangreat yesterday/

Mechanic's Assistant: Have you metered out the ignition system?

No

Mechanic's Assistant: What is the model/year of your Toyota?

2003 matrix

Mechanic's Assistant: Are you fixing your Matrix yourself? What have you tried so far?

No this just happened

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Smells like rubber burning but no smoke

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Answered in 1 minute by:
12/8/2017
Skyvisions
Skyvisions, ASE Certified Technician
Category: Toyota
Satisfied Customers: 14,994
Experience: Toyota Master Diagnostic
Verified

Have there been any warning lights especially the check engine light illuminating on the instrument panel? Have you had it tuned up recently? Has there been any recent service work? Did you fill up with gasoline recently?

Skyvisions
Skyvisions, ASE Certified Technician
Category: Toyota
Satisfied Customers: 14,994
Experience: Toyota Master Diagnostic
Verified
Skyvisions and 87 other Toyota Specialists are ready to help you
Ask your own question now
Phone call session started
Customer reply replied 8 months ago
i got engine codes. po304 cylinder 4 misfire and po420 catalyst system efficiency below threshold bank.. if you can please call me (###) ###-####i need help my car is my livelyhood. thank you don

Ok let me know how it goes after the coil swap

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Skyvisions
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Satisfied Customers: 14,994
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