Subaru Impreza WRX STI Forums: IWSTI.com - View Single Post - GR Hatch: Don's 08 STI. STI Hatchback/Wagon or bust!
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Old 07-19-15, 10:38 AM  
STIGR-Wagon-Dad
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Default Re: Don's 08 STI. STI Hatchback/Wagon or bust!

I added some clamps and zip ties to all the 6mm vacuum hoses and noticed the a/f correction dropped down to -10 and steadily adjusted itself to zero at idle. Feels powerful again and no smoking from the tailpipe. The evap solenoid #1 was the hardest to get to so they got zip tied. Everything else is clamped. I need a retune considering it was tuned with the vacuum leaks not known at the time. I guess Subarus are prone to vacuum leaks. I also went with the Prova AOS. It was an easy 5 min install and my intercooler is clean again. It didn't cost as much as the other AOS I had and it doesn't have all the crazy vent hoses going all over the place, it works as advertised.
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