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2007 Subaru Outback.. Regular #3 misfire code, occasional #4…

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2007 Subaru Outback....

2007 Subaru Outback. . Regular #3 misfire code, occasional #4 misfire. . Car runs beautifully if you accelerate 1/3 throttle or more but if you very lightly accelerate you feel a shutter and CEL comes on. . Usually #3 misfire, sometime both 3 and 4 misfire. .

Mechanic's Assistant: Does the light stay on, or does it blink?

. . When I feel the shutter let off the throttle real quick, I might not get a CEL but if I can check the codes will still find a 303 code. . If the CEL comes on it stays on but does not blink. .

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

. . Yup. . Retired mechanic, 50 years, owned own shop for 10. .

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

. . Replaced plugs (NGK), cleaned intake air sensor, replaced coil pack with one from a good running car, Of course double checked all hoses. .

Submitted: 10 months ago.Category: Car
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Answered in 9 minutes by:
9/24/2017
Auto Mechanic: David Craig, Auto Mechanic replied 10 months ago
David Craig
David Craig, Auto Mechanic
Category: Car
Satisfied Customers: 5,982
Experience: Owner/Mechanic at 3D Automotive
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Hi Im David, thanks for visiting the site. have you checked for injector pulse yet?

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