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Old 02-12-2020, 04:57 PM   #154
tb13
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Join Date: Feb 2014
Location: Arizona ٩( ᐛ )و Subaru Parts Consultant
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Quote:
Originally Posted by jerry_beans View Post
Any Sr masters here?! When I drive my car it sputters under 3500-4000 but under boost it pulls fine. Idle also stays at around 1100-1500 RPM. Switched my z32 maf and still does it, timing is good, coilpacks good, adjusted idle and even disconnected the injectors.

Some thread point to CTS, some to maf, some to o2 sensor. I’m stumped
A buddy of mine was having this exact same issue recently, high idle and a bad sputtering in low rpm. I had a spare CAS he swapped it in for shits and the car ran fantastic at a recent drift event. Give it a shot if you can borrow a CAS!
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