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tamaz, Subaru master technician
Category: Subaru
Satisfied Customers: 1236
Experience:  Subaru certified,ASE Master technician,25 years experience
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Subaru B9 Tribeca: Have a 2006 Subaru Tribeca with a 3.0 Recurring

Customer Question

Have a 2006 Subaru Tribeca with a 3.0 Recurring p0301 replaced,plugs, coil know the injector is not getting turned on by the ECM llooking for that reason found clogged cat replaced all cats with one now car runs much better but still computer appears to be killing ground side of injector on cyl 1 have taken fuel sample good. Fuel pressure right on at 50 Can't determine if ECM is shutting off cyl 1 for a reason I can't find or the ECM is bad #1 injector replaced also. ?
Submitted: 2 years ago.
Category: Subaru
Expert:  tamaz replied 2 years ago.
Hi,thanks for your question.Compression test and leak down test would be my next move but because this is intermittent I'm thinking possibly the valves may be sticking,I've seen this before and it's usually the exhaust side.If you drop the exhaust you may be able to see evidence if the guides have moved ,thanks for your time.