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#19: 10-08-2012, 09:11 AM
 Max Capacity
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Title: Gearhead
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Location: Tolland, CT. USA
Car: 05GT Wagon 5MT stg2, 09 specB stg2
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You would hear a boost leak if it was at the connector where it clamps on the tmic to TB.

IMO a bad O2 will not cause a misfire.

If it was to rich, car should run like crap.

You may need to pull the spark plugs, how long have they been in there ? they should be replaced every 60,000 miles.
256,000miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. CHECK your oil, these cars use it.

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