got this code p0520 - Cobalt SS Network



Problems/Service/Maintenance Do you have problems with your new 2.0, 2.2, or 2.4L? What kind of service did you have done?

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Old 04-23-2007, 08:44 AM   #1
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got this code p0520

I got a p0520 code I know its a oil code, but I check my oil its full and no wreied colors, or anything

and I stilll have 1000 miles before its been 3000 miles since my last oil change

did a search got nothing, is it just a sensor malfuntion code?
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Old 04-23-2007, 08:48 AM   #2
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um that's an oil pressure error. I would get that to the dealer ASAP and stop driving it. If it's not getting adequate oil pressure you will fudge the motor up.
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Old 04-23-2007, 10:02 AM   #3
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I know, but I have noo tap or anything, I was about to hook up my oil press gauge this weekend and now Im disappointed Ididnt, lol car runs fine, no problems or anything at all .
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Old 04-23-2007, 10:05 AM   #4
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I know, but I have noo tap or anything, I was about to hook up my oil press gauge this weekend and now Im disappointed Ididnt, lol car runs fine, no problems or anything at all .
It will run fine for a few then the oil pump will just go and then your fucked so next time you drive it take it to the dealer before the oil pump stops working if thats the case
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Old 04-23-2007, 11:09 AM   #5
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well, I have a 2.6 pulley 60 pund injectors exhaust and intake, the dealer wont like that,
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Old 04-23-2007, 11:14 AM   #6
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well, I have a 2.6 pulley 60 pund injectors exhaust and intake, the dealer wont like that,
O well if the dealer wont like that. I would like to see how the dealer would prove those parts caused your oil pump to go bad You definantly need to take it in.
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Old 04-23-2007, 11:52 AM   #7
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Stop making excuses. That's what you are doing right now. Your engine is in danger, stop driving it. It will run just fine with no oil for quite a while until it tears itself apart. Go get it checked, under warranty, right now.
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Old 04-23-2007, 11:54 AM   #8
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F*ck I guess Im going to have too, but the oil pump would still be under warranty right, I dont know how those parts would make the oil pump go bad like you said

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Stop making excuses. That's what you are doing right now. Your engine is in danger, stop driving it. It will run just fine with no oil for quite a while until it tears itself apart. Go get it checked, under warranty, right now.
damn dude I didnt mean to offend you or anything,

Last edited by SKDR112888; 04-23-2007 at 11:54 AM. Reason: Automerged Doublepost
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Old 04-23-2007, 11:58 AM   #9
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well, I have a 2.6 pulley 60 pund injectors exhaust and intake, the dealer wont like that,
Dude dont say nothing they wont be looking at your pully and at your injectors besides 2.6 and 2.8 i dont know but can you really tell the difference with out measuring them? so just make an appointment just be prepared for the worst and you will be suprised
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Old 04-23-2007, 12:02 PM   #10
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lol, it says ZZP 2.6 on the side of the pulley, lol

lol, Im making an appointment right now

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Old 04-23-2007, 12:22 PM   #11
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It's cool, you weren't offending me! I was making a point, and it worked. Yes, your warranty regarding your oil pump at least is perfectly fine.
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Old 04-23-2007, 12:47 PM   #12
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lol, I just hate dealing with the dealership, there the biggest pain in the ASS EVER!
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Old 04-23-2007, 12:50 PM   #13
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What dealership are you working with?
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Old 04-23-2007, 01:03 PM   #14
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heritage mile one off reisterstown road, this will be the first time I personaly will have to have warranty work done, but Ive got a friend who bought a truck from them and it was stock and they were blaming things on him and stuff that could have nothing to do with him too,

Im about to call and make an appointment but if you know one thats kool,
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Old 04-23-2007, 01:09 PM   #15
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Thats not a low oil pressure code, its a code for a bad oil pressure switch. Low oil pressure will not set P0520.
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Old 04-23-2007, 01:18 PM   #16
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Thats not a low oil pressure code, its a code for a bad oil pressure switch.
thats what my orignal question was!

is that really what it is cuase in that case AWESOME! I dont care about the swtich Im doing an oil press gauge proboly today or tomorrow in that case, I jsut didnt really understnad the DTC explanation.

so its a bad swtich
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Old 04-23-2007, 01:23 PM   #17
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Its either a bad switch or the wiring to the switch. The test that sets that light only runs when the key is on and the engine is off. If you actually have low oil pressure, the body control module will set a low oil pressure light on the dash.

Basically, that switch should be closed when the engine is not running, and open when it is running with good oil pressure. When you turn the key on but before the engine starts, the switch is reporting open, which sets p0520.

If the switch is broken, you won't know if you have low oil pressure however until its too late.
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Old 04-23-2007, 01:30 PM   #18
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In which case, still take it in. You will get a new switch, again under warranty, with no problems.
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Old 04-23-2007, 01:51 PM   #19
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no the swtich is coming out to put in my oil press gauge, whitch in this case I will just do it tonight,, the swtich is right underneath the oil filter,
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Old 04-23-2007, 02:34 PM   #20
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heritage mile one off reisterstown road, this will be the first time I personaly will have to have warranty work done, but Ive got a friend who bought a truck from them and it was stock and they were blaming things on him and stuff that could have nothing to do with him too,

Im about to call and make an appointment but if you know one thats kool,
The guys there have always been really cool to me. Thats where I bought mine from.
They gave me a little bit of a hard time for installing my own stage two, but all I had to do was sound like I knew what I was talking about and they backed off.

Good luck though!
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Old 04-23-2007, 02:41 PM   #21
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no the swtich is coming out to put in my oil press gauge, whitch in this case I will just do it tonight,, the swtich is right underneath the oil filter,
No! Don't do that. Then your ECM will no longer recieve oil pressure information and you will have a constant CEL. Just get that replaced normally and leave it alone.

Install your sender into any other of the MANY galley plugs that are all over this engine. There are lots. There is no reason to remove a necessary stock part for this.
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Old 04-23-2007, 02:51 PM   #22
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P0520 doesn't set a check engine light. He had to have pulled the code from a scan tool. Its a non emissions related fault. Thats why many people use the stock sending unit location without having a light come on when its disconnected.
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Old 04-23-2007, 02:57 PM   #23
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No! Don't do that. Then your ECM will no longer recieve oil pressure information and you will have a constant CEL. Just get that replaced normally and leave it alone.

Install your sender into any other of the MANY galley plugs that are all over this engine. There are lots. There is no reason to remove a necessary stock part for this.
the LSJ block does not have all the plugs and oil ports like the 2.2s and the 2.4s doo and no I wont its an open close swtich whitch is either open when theres pressure or more than likely close when theres pressure it proboly just kicks closed at like 10PSI or some relaly low number and in that case I just either wire nut them together or keep them separte and I wont get a code from it, if the actually engine read pressure it would be based off of ohms more than likely, but its not is a closed open swtich thats activated by pressure when its drops to low it either opens or closes witch would through the oil pressure light,

and you dont need the swtich if your going to actually monitor it with a gauge




and really the guys on reisterstown road are kool? I figured they would bel ike every other dealership, Ill have to remember that

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P0520 doesn't set a check engine light. He had to have pulled the code from a scan tool. Its a non emissions related fault. Thats why many people use the stock sending unit location without having a light come on when its disconnected.
yeah I have the aeroforce gauges, and I check the codes every week or soo...

aiesnt the stocker sender a open close that kicks in at a relaly low psi reading?

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Old 04-23-2007, 08:32 PM   #24
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P0520 doesn't set a check engine light. He had to have pulled the code from a scan tool. Its a non emissions related fault. Thats why many people use the stock sending unit location without having a light come on when its disconnected.
Really? Interesting. Still seems easy enough to leave it alone however and just tap a different location. But if it's OK, then great.
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Old 04-23-2007, 08:46 PM   #25
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and really the guys on reisterstown road are kool? I figured they would bel ike every other dealership, Ill have to remember that
Well, I wouldnt roll in their and start rattling off mods. But they are alright guys. Never gave me problems with bolt ons, and dont think they take notice of small things.
If you want to be more confident, stick on a bigger pulley, but I dont think they will pay that close of attention.
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