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Snoshado's FXT Journal

124146 Views 766 Replies 97 Participants Last post by  Snoshado
Snoshado's "Because Racecar" Build Thread

Random Mods

  • 2006 STI Longblock
  • Top Feed Injector Conversion
  • Fuel Injector Clinic 1100cc Injectors
  • Blouch TD06 20G-XT Turbo
  • Manley CR Pistons
  • ACL Race Bearings
  • CX Racing FMIC
  • Random Technologies Catted Hi-Flo Downpipe
  • Tomei Equal Length Headers
  • Tomei Up Pipe
  • Prodrive Boost Solenoid
  • OEM STI Spark Plugs
  • Koyo Aluminum Radiator
  • COBB Turbo Heat Shield
  • Injen Short Ram Air Intake
  • 3" COBB Catless Exhaust
  • Perrin Turbo Inlet Hose
  • Perrin Master Cylinder Brace
  • Kartboy Short Shifter
  • Mishimoto Oil Catch Can
  • Group N Motor Mounts

  • 2005 STI Transmission
  • 2005 STI Rear Differential
  • 2005 STI Front/Rear Hubs (5x114.3)
  • 2005 STI Driveshaft & Axles
  • 2005 STI Front/Rear Brembo Brakes
  • ACT Heavy Duty Clutch Kit
  • Competition Clutch Lightweight Flywheel

Wheels / Suspension
  • Enkei Rajin Wheels 18x8"
  • Kumho Ecsta PX91 XL 245/35/18
  • MSW Type 85 Wheels 17x8" +48 Offset
  • 2005 STI JDM Struts
  • STI Aluminium Lateral Links
  • STI Rear Strut Tower Brace
  • Perrin Polyurethane Front End Links
  • Rear Subframe Lockdown Bolts / Bushings

  • 2008 FXT Gauge Cluster Surround
  • 2011 OEM STI Shift Knob
  • 2006 STI Shifter Surround
  • 2008 JDM STI Hazard Button
  • AEM Wideband Gauge
  • Prosport Boost Gauge (52mm)
  • Prosport Oil Pressure Gauge (52mm)
  • STI Floor Mats
  • WRX Limited Front Seats
  • Polk Front/Rear Speakers (DB651)

  • Front STI CS2 Style Lip
  • 2008 Sport Front End (headlights, grille, hood, fenders, bumper)
  • 2013 STI HID Projectors + OEM Harness (retrofitted by me!)
  • Rear Spoiler
  • Subtle Solutions Skidplate
  • 2008 Sport Tail Lights
  • 2008 Forester Sports Sideskirts
  • 2006 OEM STI Front / Rear Emblems

Wish List

This was my first real dirt drive out by Pyramid Lake, NV! Good times :icon_wink:

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Because I fixed everything! Turned out the washers on the top oil feed line for the turbo were shot... which was the first thing I replaced and I still had the problem -_- Then a friend came over and told me to get OEM ones and problem solved!
Nailed it! I'm glad you got it fixed. Can't say I've ever heard of the spark plug issue. Interesting.
Vacuum at idle should be a larger negative number and your fuel correction is all over the map. Could be the front O2 on its way out and may be why it only does it at idle and not under higher throttle. The front controls light load corrections and could be a good start.
The vacuum/leak can be tested but the o2 can't to my knowledge.
There is one further forward in the header just before the up pipe. I would try to track down a vacuum leak first. It is basically free to check all the hoses and do a smoke test. The front O2 could have fouled from you running rich or just age.
Agreed, I don't even remotely see the connection between the idling and the cat. I would still put money down on the vacuum leak.
Man two for two! I can be hired as a consultant if you like. :cool: Glad you got it sorted and at this point I would strongly consider a remote tune. There are so many reputable shops that do it now. I have a remote tune for the simple fact that the nearest "good" tuner is around six hours away.
1 - 7 of 767 Posts