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#1 |
Scooby Newbie
Member#: 493872
Join Date: Nov 2018
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![]() I took a data log today because my car had been feeling weird. The log shows my boost climbing up to 18psi (target) then it would drop down to about 10psi and climb back up To 18 again. It does this over and over through my pull. I could hear it leaking out like a blow off valve when it would drop. It’s a bugeye on a Cobb stage 2 map with a catted downpipe and Cobb intake. Where should I start troubleshooting?
No obvious leaks that I could see. Can post up the log if anyone wants to see it.
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#2 |
Scooby Newbie
Member#: 477751
Join Date: Nov 2017
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![]() Are you running the stock boost controller?
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#3 |
Scooby Newbie
Member#: 493872
Join Date: Nov 2018
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#4 |
Scooby Newbie
Member#: 397139
Join Date: Jul 2014
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![]() Get a Mac 3 port for cheap and get it tuned for it. Stock ones commonly go bad.
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#5 |
Scooby Newbie
Member#: 479655
Join Date: Dec 2017
Location: Omaha Ne
Vehicle:2002 Impreza wrx Black |
![]() Or get the Cobb 3port and retune with their Stage2 ebcs map. Is the downpipe from Cobb?
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#6 |
Scooby Newbie
Member#: 492460
Join Date: Oct 2018
Chapter/Region:
BAIC
Location: Bay Area, CA / Rapid City, SD
Vehicle:2019 WRX |
![]() I would also check for boost leaks in your intake system, pull the intercooler and check the Y-pipe for sure. Sometimes leaks can do weird stuff like that.
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