Check Engine Light!

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Old 06-21-2011, 09:23 PM
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Unhappy Check Engine Light!

Crap, turned on my car and the check engine light popped up! I just installed a zero/sports radiator cap the other day.... would that have anything to do with it?!
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Old 06-21-2011, 09:39 PM
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hey, if you are ever in the fremont area, i wanna test out my scanner tool... lemme know...
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Old 06-21-2011, 09:59 PM
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BTW: Are radiator cap's supposed to go on the top or bottom?!
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Old 06-21-2011, 10:00 PM
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Originally Posted by ldivinag
hey, if you are ever in the fremont area, i wanna test out my scanner tool... lemme know...
If it keeps staying on I will def let you know!
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Old 06-21-2011, 10:02 PM
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Originally Posted by SubyWrxGuy
BTW: Are radiator cap's supposed to go on the top or bottom?!
You mean the reservoir up near your turbo?

You should have a matched set of caps for it to work best. If you upgrade the cap on the radiator, you should the same cap for the reservoir. Keeps pressure and temps consistent throughout the cooling system.
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Old 06-21-2011, 10:05 PM
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Originally Posted by SubyWrxGuy
Crap, turned on my car and the check engine light popped up! I just installed a zero/sports radiator cap the other day.... would that have anything to do with it?!

disconnect the negative terminal on the car battery for a minute or two, reconnect the terminal and see if the CEL is still on...
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Old 06-21-2011, 10:22 PM
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Make sure your gas cap is on tight.
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Old 06-22-2011, 05:06 AM
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Scan it.
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Old 06-22-2011, 06:12 AM
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My check engine light keeps coming up too and cruise control light ... Car feels fine, not one issue. Anyone know of an affordable place to get the car scanned? Co worker told me they charge up to 100$ to plug it in and tell you what the issue is.. How true is that because it seems a little high ...
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Old 06-22-2011, 07:18 AM
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Originally Posted by apetron
You mean the reservoir up near your turbo?

You should have a matched set of caps for it to work best. If you upgrade the cap on the radiator, you should the same cap for the reservoir. Keeps pressure and temps consistent throughout the cooling system.
Crap, I put an zero/sports cap on bottom reservoir above the radiator shroud....

Last edited by SubyWrxGuy; 06-22-2011 at 07:24 AM.
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Old 06-22-2011, 07:56 AM
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This is the only reason I still have my ap ha, easy to check and clear codes
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Old 06-22-2011, 09:46 AM
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Originally Posted by apetron
You mean the reservoir up near your turbo?

You should have a matched set of caps for it to work best. If you upgrade the cap on the radiator, you should the same cap for the reservoir. Keeps pressure and temps consistent throughout the cooling system.
Is it potentially dangerous to have one cap upgraded and the other the same? Thanks!
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Old 06-22-2011, 09:54 AM
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Usually Napa or any good auto parts store will scan your car for free and give you the code.
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Old 06-22-2011, 09:54 AM
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Bryan, I highly doubt its related to your radiator cap. A system is only strong as the weakest link, which would be the other one, so in essence there shouldn't be much of a difference.

The majority of times CELs are due to electrical things such emissions sensors misreading or going bad, cylinder misfires and the like. I can help you scan it on friday if you want
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Old 06-22-2011, 10:00 AM
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Originally Posted by code3suby
Bryan, I highly doubt its related to your radiator cap. A system is only strong as the weakest link, which would be the other one, so in essence there shouldn't be much of a difference.

The majority of times CELs are due to electrical things such emissions sensors misreading or going bad, cylinder misfires and the like. I can help you scan it on friday if you want
Thanks Paul you kick butt man! We need to chill anyway

The cap i replaced was rated @ a lower pressure that the cap on the top reservoir so i figured it should be fine...

I guess it has been a while since i replaced the spark plugs....

Last edited by SubyWrxGuy; 06-22-2011 at 10:05 AM.
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