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Old 09-05-2013, 10:58 PM   #1
2010rexxx
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Default 2010 WRX boost issues

Im thinking that the stock BCS has gone bad or one of the vacuum lines has gone bad as well. I have a 2010 WRX and I am wondering if any of you had this problem before? the car has just over 40k miles on it and I'm a little weirded out by boost not kicking in at all basically..
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Old 09-05-2013, 11:12 PM   #2
ProfessWRX
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Did you physically check the vac lines?
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Old 09-05-2013, 11:36 PM   #3
2010rexxx
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i did but only the ones that i could see from the top and the bottom of the car. tomorrow morning im going to pull out the vac lines and disconnect the stock BCS to see if those lines are the problem.
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Old 09-05-2013, 11:37 PM   #4
2010rexxx
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that is the vac lines that lead from the bcs unit to where it forms the "T" line
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Old 09-06-2013, 01:16 PM   #5
2010rexxx
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alright i took out those lines, inspected them, did a leak test with smoke and found no leaks whatsoever. At this point, I'm leaning towards the stock BCS turning bad. I have a Grimmspeed ECBS im just saving up a little more to have it protuned since i have a catless downpipe as well thats ready to be installed so everything can be done at once.. Any ideas guys? You think its the stock BCS?
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Old 09-06-2013, 01:45 PM   #6
jerbull88
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Are you getting no boost at all or just wg pressure?
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Old 09-06-2013, 02:30 PM   #7
2010rexxx
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im getting some boost but it fluctuates like no other. I hit no more than 10 psi and it goes straight back down like some electronic is going wrong. im getting wg pressure as well. alot of fluttering
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