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Kevin C.
Kevin C., Subaru Master Tech.
Category: Subaru
Satisfied Customers: 1727
Experience:  34 years of Subaru service experience, ASE Master Technician.
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2006 b9 tribeca 3.0 inline six cyl 1 missfire. Changed spark

Customer Question

2006 b9 tribeca 3.0 inline six cyl 1 missfire. Changed spark plugs. Changed Number 1 coil. Swapped injectors. Replaced intake seals. Spark is good. Maf is clean. Out of ideas. Still missfiring
Submitted: 2 months ago.
Category: Subaru
Expert:  FIXITMAN replied 2 months ago.

Hello, my name is***** this occurring before the spark plugs were replaced?

Customer: replied 2 months ago.
got the car from the auction. seems like it was a problem for a long time because catalitycs where shot too. replaced those. checked cylinder 1 compression.. compression good. still missfire
Customer: replied 2 months ago.
another thing missfire sometimes will go away for a second or two. couple times i was able to drive for 20 min with all cylinders working
Expert:  FIXITMAN replied 2 months ago.

Can you tell me what the compression was on that cylinder?

Customer: replied 2 months ago.
148
Customer: replied 2 months ago.
I guess i have steady 14 volt on number 1 injector but no pulse. Where should i do next?
Expert:  FIXITMAN replied 2 months ago.

What is the resistance on the ground side of the wire?

Customer: replied 2 months ago.
How to measure?

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