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Old 03-15-2019, 03:24 PM   #1
Scooby Newbie
Member#: 499113
Join Date: Mar 2019
Default 2002 wrx only 5 psi of boost

Hey guys I'm newer to the subie gang. I have a stock rhd bug eye wagon wrx. Recently I noticed that I'm only getting 5 psi of boost which I know it's supposed to be around 14. At times I do get the full 14 but typically thats for a couple seconds and then drops to 5 again. The car has a rough idle when cold. Runs totally fine and haven't noticed my fuel mileage decreasing so far. I have a CEL but that's been there since I bought it. I did a diagnostic check and I have the following codes:

I'm taking the car into the shop in a couple days but I thought I'd throw it in here to see if I get any ideas from you guys.
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Old 03-15-2019, 04:37 PM   #2
Scooby Guru
Member#: 212172
Join Date: May 2009
Chapter/Region: MWSOC
Location: 312


P0102 - MAF Circuit Low Input
P0113 - Intake Air Temp Circuit High Input

P0172 SUBARU - System Too Rich Bank 1
Faulty front heated oxygen sensor
Ignition misfiring
Faulty fuel injectors
Exhaust gas leaks
Incorrect fuel pressure
Faulty Mass Air Flow (MAF) sensor<---
93stiImperza is offline   Reply With Quote

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