Has any one had a PO508 ?
02-28-2005 | 11:24 AM
#1
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Has any one had a PO508 ?
So I threw a cel this morning when I started up my car, symptoms were: Fluctuating idle and low power at part throttle. So I backed it back into the carport want to autozone and borrowed thier scanner. PO508 "Idle control system circut low" has any one had any experience with this one? I didn't even see it listed in the error codes thread.
Any help would be awesome, i don't want to take it to the dealer unless I have to. They'll just end up *****ing about my exhaust or something else that's irrelivant.
Thanks-
Any help would be awesome, i don't want to take it to the dealer unless I have to. They'll just end up *****ing about my exhaust or something else that's irrelivant.
Thanks-
02-28-2005 | 02:14 PM
#2
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so i reset the ecu, and it popped back up. Shut it off, plugged the scanner back in, erased the code, fired it back up and it was gone. I havn't driven it yet but I let it idle for a few minutes and it seems fine. Does any one have any info on this code?I guess I'll drive it around for awhile and see what happens.
03-01-2005 | 10:11 AM
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Bump
So I drove to work and back last night after clearing the code(about 5 miles) and everything seemsd fine... until this morning same cel same symptoms does any one know what this means?
So I found a few posts on nabisco from a few years ago, but no answer.
http://forums.nasioc.com/forums/sear...archid=1317758
So I drove to work and back last night after clearing the code(about 5 miles) and everything seemsd fine... until this morning same cel same symptoms does any one know what this means?
So I found a few posts on nabisco from a few years ago, but no answer.
http://forums.nasioc.com/forums/sear...archid=1317758
Last edited by VIBEELEVEN; 03-01-2005 at 11:10 AM.
03-02-2005 | 05:54 PM
#4
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A while back I posted the following thread regarding an idling problem and CEL I was getting: Original thread on p0508 CEL . I received a couple of suggestions on what it might be, but I continued to have a problem - when the engine was cold the idle was unstable and higher than normal, and I would get a rather alarming fuel cut-off (I think) at 5000 rpm in 1st gear. The odd thing was that it would frequently behave normally once the engine was hot.
I took it to my local dealer - the first time they couldn't diagnose what was wrong, but just erased the CEL and told me it seemed to be working okay. Much to their embarrasement, when I came to pick up the car it happened again. This time they determined that the Idle Control Valve (p/n 22650AA181) was bad, or sticky, and replaced it - which seems to have finally corrected the problem (fingers crossed).
Just thought it might be helpful to provide this update in case anyone else has the problem.
Andrew
I took it to my local dealer - the first time they couldn't diagnose what was wrong, but just erased the CEL and told me it seemed to be working okay. Much to their embarrasement, when I came to pick up the car it happened again. This time they determined that the Idle Control Valve (p/n 22650AA181) was bad, or sticky, and replaced it - which seems to have finally corrected the problem (fingers crossed).
Just thought it might be helpful to provide this update in case anyone else has the problem.
Andrew
03-02-2005 | 06:48 PM
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Thanks eric, I saw a few posts on nasioc and some one responded to my post there with a very helpful service manuel attachment. I cleaned off all the connections(wich were clean anyways) and drove it a few miles and it was fine, codes came back clear. Then this morning it happend again.Ahhhhhhhh WTF? Unplugged the - terminal overnight, drove to work and back and it was fine. Started it up the next morning and the little biach was back. After doing homework on the p0508 I've decided it's probably the IAC valve wich is aruond 275 bucks.
Last edited by VIBEELEVEN; 03-04-2005 at 03:55 PM.
03-04-2005 | 03:55 PM
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I guess my next question is will my dealership deny me warrenty work because of an uppipe? I read horrer stories on nabisco about dealers voiding people because of a short shifter and charging them 600 dollars for the part. Should I bring up the magnussen moss act if they start giving me the run around?
03-04-2005 | 04:47 PM
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From: Commuting? I don't know what that means anymore.
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It all depends on the dealership and the techs if they want to deny it they will.
If they don't care then they don't care. It's a shot in the dark unless you know someone that's ok with it.
If they don't care then they don't care. It's a shot in the dark unless you know someone that's ok with it.
03-05-2005 | 11:47 AM
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Doesn't the magnussen moss act state that if the modification doesn't have anything to do with the faulty system than they can't deny warrenty work? IE: if you put in a stereo and your sway bar endlinks fail, or in my case exhaust an electronic sensor on the throttle body goes out?
03-05-2005 | 12:30 PM
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Well if they feel like stretching the "more power = more problems" idea then they might deny it. But if they don't look or don't care then you don't have to worry about it.
03-06-2005 | 06:42 PM
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So I go to start my car today and same thing again. Pull the IAC, clean it up, and still the same, even after disconnecting the battery. Go back to autozone to borrow thier scanner, clear the code and it seems to run fine. Drove it around all day(about thirty miles) and no cel, yet. I guess we'll just have to see. I finally broke down and bought one of the pocket scanners to keep in my glove box just in case.
03-06-2005 | 10:55 PM
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The reason it always seems to be fixed and then come back is that the system needs to see the problem for 2 consecutive trips to set a fault and light the cel........though the exhaust mods shouldnt have anything to do with this problem, if the dealer chooses to make note of them in the repair order, and subsuquently with Subaru, you may have warranty trouble down the road if you have a failure of a related part later.
03-07-2005 | 08:59 AM
#14
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Yeah I started up my car this morning and it happened again. I cleared the code and it came right back. It seems to happen mostly when it's started cold, I read somewhere that the computer sets this code the second it sees it.
[QOUTE=robtech] ........though the exhaust mods shouldnt have anything to do with this problem, if the dealer chooses to make note of them in the repair order, and subsuquently with Subaru, you may have warranty trouble down the road if you have a failure of a related part later. [/QUOTE]
as a heads up, what would one of these related parts be? Thanks.
[QOUTE=robtech] ........though the exhaust mods shouldnt have anything to do with this problem, if the dealer chooses to make note of them in the repair order, and subsuquently with Subaru, you may have warranty trouble down the road if you have a failure of a related part later. [/QUOTE]
as a heads up, what would one of these related parts be? Thanks.
03-07-2005 | 03:52 PM
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You said you modified the exhaust. A free flowing exhaust is considered a power adding mod.(well with some exhausts anyway, but thats a whole other topic.) So if it is seen as being an addition of power to the car, anything that may fail related to a power increase cpuld come into question. Clutch, trans, internal engine components, etc.....