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

Boost question?

Old Jul 1, 2011 | 04:13 PM
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TheBoss8688's Avatar
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From: PA/MD line
Boost question?

I always have a boost issue. Earlier in the week i had boost fluctuating issue booting from 20-30-20 and back and forth. I changed out the top intake manifold MAP sensor and then the lower sensor on the piping from the intercooler to the intake manifold. It now is jumping to 24 and slowly creeping to 30. I am tuned at 24psi. Whats going on?
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Old Jul 1, 2011 | 04:42 PM
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From: PA/MD line
Anyone?
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Old Jul 1, 2011 | 04:44 PM
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that doesnt sound good at all haha. i could only imagine its the tune.
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Old Jul 1, 2011 | 05:01 PM
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and i wouldnt be driving around too much, i you have to drive try to stay out of boost till you get it figured out.
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Old Jul 1, 2011 | 05:17 PM
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30 is okay.
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Old Jul 1, 2011 | 05:44 PM
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Ok I went out and got MAF cleaner and cleaned them. Now I'm having no issue at all!! So that was it
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