08-10 SS Turbocharged General Discussion Discuss the 2008 - 2009 Chevy Cobalt SS Turbocharged. On sale since the second quarter of 2008.

MAP Sensor questions?

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Old 04-06-2011 | 11:37 AM
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MAP Sensor questions?

So my car has 28,000 mile on it after two years. Well I have blown 2 map sensors since I got tuned at around 12-16k. I have heard things about the upgraded map sensors by GM but they are redic in the price. I had the dealer replace the first one. But now I don't want to take it to the dealer. I know 24psi is what's killing it but are these upgraded sensors any better? Also why is it that only few cobalts run into this problem?
Old 04-06-2011 | 11:40 AM
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First off, the boost isn't killing it. Second, you JUST started running 24psi at that LOL. I ran my car for 10k miles at 30 PSI, and I'm STILL on those same sensors..

Some cars have more blowby then others and that oil vapor seems to kill the MAP sensor. Every car Ive seen with blown MAP issues had some blowby. Get a catch can and buy some GMS1 sensors from Autowerks for $100. I can get them for you if you need and then update the tune for those as well.
Old 04-06-2011 | 11:46 AM
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Nice. Thanks nick. Yea I forgot to write I just got retuned. Oh well. Thanks and I'll let you know asap when i can do this^
Old 04-06-2011 | 11:52 AM
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Can you get the eBay link for me to the catch can you recommend. Thanks. I would like to get MPx but it's not cheap.
Old 04-06-2011 | 11:58 AM
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Originally Posted by TheBoss8688
Can you get the eBay link for me to the catch can you recommend. Thanks. I would like to get MPx but it's not cheap.
$99 is cheap, you get what you pay for and the mpx one is direct plug n play. With a generic one you'll have to dick around with all sorts of ****.
Old 04-06-2011 | 12:07 PM
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Originally Posted by TheBoss8688
Can you get the eBay link for me to the catch can you recommend. Thanks. I would like to get MPx but it's not cheap.
$99 bucks for a PnP setup, guaranteed fitment, warranty, and flawless functionality?

Enjoy your eBay setup.
Old 04-06-2011 | 12:10 PM
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PNP for a hose? How hard is that to work out lol.. $25 vs $100. Its a can to catch oil vapor lol..
Old 04-06-2011 | 12:17 PM
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Originally Posted by BYT*SS*TURBO
PNP for a hose? How hard is that to work out lol.. $25 vs $100. Its a can to catch oil vapor lol..
AFAIK the MPx one is designed to mount with no drilling or hassel of figuring out where the heck to mount the thing. It's laid out straight forward for you. If you're more innovative and want to make your own kit. Feel free
Old 04-06-2011 | 12:18 PM
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I would like to save as much money but still have this be a good catch can so I would like to look at the cheaper one and then I'll make a decision. Nick can you get mr a link please cause I looked at them but I don't know which one you recommend
Old 04-06-2011 | 12:25 PM
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Which it sounds like he wants to do, so why hate on him for saving money to do very minimal amount of work lol. I could install that thing in 10 mins.

Its a can, buy one.
Old 04-06-2011 | 12:33 PM
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Originally Posted by BYT*SS*TURBO
Which it sounds like he wants to do, so why hate on him for saving money to do very minimal amount of work lol. I could install that thing in 10 mins.

Its a can, buy one.
I'm not hating. I'm just saying you're going to recieve a box of things no matter which route you go. With a universal setup from eBay, it's your job to figure out where the pieces go and buy/find additional parts when necessary.
Old 04-06-2011 | 01:10 PM
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Thanks everyone. I'll get the catch can, not sure which one yet. But I do like things being easy but I hate things that are over priced. So I'll go and check them all out and whichever one catches my eye as the best I'll go for it. BYT, I'll get in touch with you via email and let you know when I can have you order those sensors and drive up for another retune.

Once I get this catch can, if I get a new map sensor from dealer you think I will still have the issue of it blowing? Also what does these extra map sensors do exactly?

Last edited by TheBoss8688; 04-06-2011 at 01:17 PM.
Old 04-06-2011 | 02:46 PM
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I ordered the MPx catch can. I want to save the money for bigger better things but I trust MPx way more than anything on eBay.
Old 04-06-2011 | 04:02 PM
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I wanna see the Four Loco catch can.
Old 04-06-2011 | 04:07 PM
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LMAO! $4 and will work just as well...best part LOL..
Old 04-06-2011 | 05:14 PM
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Lol yes. Why didnt I think of that.
Old 04-07-2011 | 02:59 PM
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I need instruction on how to install catch can. Can someone post link?
Old 04-07-2011 | 03:52 PM
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The MPX catch can probably comes with instructions. That braided hose that goes from your valve cover to your air breather is being replaced by the catch can and supplied tubing. (See from red arrow to red arrow.) The can will mount to the front of the motor so you can access it and because it's at a point lower than the connections, so oil be caught in the can. I'm just assuming this is how it works. I've never seen the MPX catch can installed.

Old 04-07-2011 | 04:47 PM
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I popped my MAP too, found lots of oil in the intake manifold and the sensor, time to order a catch can ugh.
Old 04-07-2011 | 04:57 PM
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^Thanks for posting that tho, it does seem to be a trend!
Old 04-07-2011 | 05:06 PM
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Originally Posted by YelloEye
I popped my MAP too, found lots of oil in the intake manifold and the sensor, time to order a catch can ugh.
I am on my 4th fricken sensor did notice oil inside manifold where sensor was taken out. ty for info gettin catch can tonight or tomorrow
Old 04-08-2011 | 03:13 AM
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Ive been through 4 or 5 of them. Purchased a MPx catch can about 6 months ago and none of them have failed.
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