Diagnostic code P1507 - Subaru Outback - Subaru Outback Forums

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Old 01-16-2011, 06:06 PM   #1 (permalink)
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Default Diagnostic code P1507

Good day everyone. Long time Subaru owner, in fact i own two, but I am a newbie to this forum. I need some help. I have a '98 Outback 2.5L with 267,655 miles on it. Today while is was warming up, the check engine light came on. So I went and got my code reader(a generic one at that) and I pulled the code. P1507. I was wondering if anyone new what the code was or where i can find the defintion to it without going to the dealer. My book for the code reader tells me it is a dealer specific code, but it also tells me that it is somewhere in the in the speed control or idling section of the engine. Any expertise would be greatly appreciated.

Doug
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Old 01-16-2011, 08:16 PM   #2 (permalink)
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P1507 Idle Control System Malfunction (Fail Safe)

Plug that into our search bar.

Engine light P1507
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Old 01-16-2011, 11:42 PM   #3 (permalink)
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This code is a pain in the ass. I ended up replacing my Idle Air Control Valve Solenoid, Throttle Body and TPS (including adjusting it) and that finally fixed it.
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Old 01-17-2011, 02:12 PM   #4 (permalink)
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Mine came up with the same code today and started to stall at idle when warmed up. Any luck pulling the t-body and IAC and cleaning them for a solution, 349.00 is pretty pricey for a replacement.
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Old 01-18-2011, 11:00 AM   #5 (permalink)
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Cleaned IAC and throttle body,cleaned stuck pcv valve, car idles rock solid at 700 rpm self adjusts for ac and when put in gear(AT trans), all in all the time and effort paid off with no more cash outlay other than throttle body cleaner and some of my time. I had a check eng light but cleared it with my code reader and it did not come back on even after a test drive and some extensive idle time.

Last edited by chrish8846; 01-18-2011 at 11:04 AM. Reason: more info
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Old 01-18-2011, 05:50 PM   #6 (permalink)
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Thanks for the ideas boys. I didnt drive the car on monday but drove it today. I let it warm up for about 10 minutes ( as I do everytime I drive the car) and I had no issues. I cleared the code before I started it. So @ this point the problem seems to be intermittent. I will try some of you ideas and see what happens. I will keep y'all posted.

Doug

P.S. Lots of information in past post's. Thanks for the idea to looke there AWDFTW...
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Old 06-18-2011, 11:25 AM   #7 (permalink)
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Default P1507 code fixed with neutral switch

Quote:
Originally Posted by doubrah View Post
I have a '98 Outback 2.5L with 267,655 miles on it. Today while is was warming up, the check engine light came on. So I went and got my code reader(a generic one at that) and I pulled the code. P1507. I was wondering if anyone new what the code was or where i can find the defintion to it without going to the dealer.
I have a 5-speed 2002 Subaru Outback wagon with 150k on it. Periodically I'd stall when slowing down while downshifting. I would reliably get the CEL every time I'd downshift going downhill. My code reader showed P1507.

I replaced the neutral switch ($30) and that fixed the problem. The switch was pretty easy to install - basically unscrewing the old one from the transmission, disconnecting the electrical plug, then reverse with the new one. Once you're under the car it's a 20 minute job tops. Good luck.

LINK: http://www.porcupine73.com/endwrench...TroubSum04.pdf
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