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10-12-2020, 08:10 PM | #1 |
Scooby Specialist
Member#: 378421
Join Date: Jan 2014
Location: NC
Vehicle:2005 Cobb Stg2+ Wrx Platinum Silver |
Wrx p0519 iacv
Hey all, my 05 Wrx (ej205) threw a cel p0519 and could use some suggestions.
Everything was fine friday, then i started it saturday and instantly idled funny and high. I let the car warm up then took it for a test drive. Below about 5mph, in first or reverse, the car sputtered, but drove perfectly fine once going above 5mph. After about 5 minutes of driving, cel came on, checked it with my accessport, p0519 idle control system malfunction, cleared ecu and same thing happened. I took the iacv valve off, cleaned it and put it back on with new oem gasket. Same problem. Does this mean i need to replace the iacv valve? Or do i need to keep driving it? Could it be a gummed up throttle body? Idle screw adjustment? Tps sensor? Something else? Please help, i dont want to start just replacing parts ***128514;
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10-13-2020, 08:06 PM | #2 |
Scooby Specialist
Member#: 378421
Join Date: Jan 2014
Location: NC
Vehicle:2005 Cobb Stg2+ Wrx Platinum Silver |
Well today i cleared the code again because i hate seeing the light on, and the car no longer studders or hesitates in drive or reverse, and the cel hasnt come back on, but it still idles high in park or neutral.
Any ideas aside from just replace the iacv valve and pray? |
10-13-2020, 08:21 PM | #3 |
Scooby Newbie
Member#: 513758
Join Date: Apr 2020
Location: salmon arm bc canada
Vehicle:2004 impreza wrx black |
maybe look to see if your purge control valve on the fuel line just under the intake right by the alternator. i am rebuilding mine and honestly mines was doing the same when my purge valve was disconnected. yours could be damaged? just a thought. i know the fuel system is pretty complex but not impossible to figure out. on the stock hood about the middle of the drivers side should be a diagram of that system im talking about. i may not be a subie guru but im a tech so a little helpful maybe.
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10-16-2020, 06:08 PM | #4 |
Scooby Specialist
Member#: 378421
Join Date: Jan 2014
Location: NC
Vehicle:2005 Cobb Stg2+ Wrx Platinum Silver |
Purge valve is still hooked up, no vacuum leaks i can find without a smoke machine.
I guess ill order a new iacv valve, since im not sure if tps sensor or anything else could possibly cause this? Last edited by 4eat05; 10-16-2020 at 07:29 PM. |
10-16-2020, 09:59 PM | #5 |
Big Ron
Super Moderator Member#: 18062
Join Date: Apr 2002
Chapter/Region:
MAIC
Location: I can save you a ton of cash
Vehicle:on car parts so PM me b4 j00 buy |
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10-16-2020, 11:55 PM | #6 |
Scooby Specialist
Member#: 110078
Join Date: Mar 2006
Location: Long Island N.Y.
Vehicle:02 Bugeye JDM STi OBP BLACK |
I have a good working condition idle control I can sell you, please pm if interested.
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10-19-2020, 12:36 PM | #7 |
Scooby Specialist
Member#: 378421
Join Date: Jan 2014
Location: NC
Vehicle:2005 Cobb Stg2+ Wrx Platinum Silver |
Cleaned it again eith gasoline, still drives great, no more stumbling, hesitation or trying to stall, but still idles high in park and neutral.
Anything else that could cause this? Could tps sensor do this or park neutral safety switch while throwing a iacv cel instead of tps or park/neutral cel? |
10-19-2020, 03:30 PM | #8 | |
Scooby Newbie
Member#: 17418
Join Date: Apr 2002
Chapter/Region:
RMIC
Location: Littleton, CO
Vehicle:2002 WRX 1968 Camaro SS/RS |
Quote:
Disclaimer: I don't own an autotragic WRX, but just see this with other auto trans vehicles I own. |
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10-21-2020, 10:33 AM | #9 |
Scooby Specialist
Member#: 378421
Join Date: Jan 2014
Location: NC
Vehicle:2005 Cobb Stg2+ Wrx Platinum Silver |
Idle around 1800 rpm in P and N, used to idle at like 800 rpm in p and n before this happened.
Cleaning iacv valve seemed to fix the hunting idle/hesitation/stumbling and no more cel, but still idle higher than before... |
10-21-2020, 01:14 PM | #10 |
Scooby Specialist
Member#: 110078
Join Date: Mar 2006
Location: Long Island N.Y.
Vehicle:02 Bugeye JDM STi OBP BLACK |
I still have a good original Subaru idle control valve for sale, pm if interested.
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10-24-2020, 06:19 PM | #11 |
Scooby Specialist
Member#: 378421
Join Date: Jan 2014
Location: NC
Vehicle:2005 Cobb Stg2+ Wrx Platinum Silver |
Now im just getting a p0507 idle too high, no more p0519, what else could possibly cause these issues?
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11-17-2020, 10:38 AM | #12 |
Scooby Newbie
Member#: 520325
Join Date: Nov 2020
Chapter/Region:
MAIC
Location: Charleston, SC
Vehicle:2005 "bastard" WRX Blue |
Mutual problem
I'm having this same issue, minus the change in code. Did you ever get this resolved?
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