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Resolved! Lengthened the waste-gate arm 1/2” by threading the arm and using a coupling nut. It’s now holding a steady 15psi with my foot on the floor. Apparently the “k04” replacement turbo has some extra meat on the frame or housing and with the stock length actuator, it was not opening the...

Solved! But not yet resolved. I now need to buy a wastegate actuator with the proper length arm or an adjustable arm. See the attached pictures. 5 1/16” stock turbo with the wastegate flapper closed versus the stock size replacement turbo at 5 1/2”. Ignore the parallax error on the pictures. I...

Adding another log. It feels SOOO good after driving a Ford Fusion for the last several months, but this is wigging me out. It spiked at 23 PSI this morning and I'm not even putting my foot down, then immediately let off when I see it jumping up. Is my Wastegate not working? Line 80: up to 19...

P0571 code update: As mentioned in the initial post, I found fuse #38 (horn/brake light/cruise control) blown in the passenger side fuse panel. I'll get some new 10A fuses and confirm the fix.

ENGINE/DRIVABILITY ** Feels great, AFR looks good, but boost (18 PSI+) seems to be climbing higher than I feel comfortable with. Up to 23 PSI! Logs uploaded. Please advise. *Also, the horn doesn't work and brake lights don't work..? Ugh... **Update: found fuse #38 (horn and brake lights)...

**Update and correction! Thanks for the suggestions. I used MAF sensor cleaner spray at all hose connections and then I got a reaction over the lower part of the TMIC. Voila. I thought I had a leak in the used TMIC, but after replacing it with the stock intercooler, there was no change. I pulled...

ENGINE/DRIVABILITY Year/Make/Model: 2007 Mazdaspeed 3 Mileage: 207,000 miles Location/Alitutude: Missouri Ozarks Concern: Engine will not idle, or occasionally will hang on with a very rough idle, then die; when rolling slow in 1st or 2nd gear, gas pedal is VERY touchy and causes the car to...