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Cobalt This sporty compact was faced with the difficult job of replacing the popular Cavalier, but whether the base model, or the supercharged SS is chosen, is has made for a great replacement.
Platform: Delta
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Boost problems

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Old Jul 30, 2019 | 11:32 AM
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Shawnsmith0666
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Unhappy Boost problems
My boost gauge wont go past 2 1/2 lbs I just bought the car I replaced the vacume hoses and the boost solenoid and still no luck. The vacume pressure on the bypass valve is good. I'm not sure what is going on every once in a while my car will throw a bypass circuit code anyone know what's going on?
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Old Jul 30, 2019 | 2:11 PM
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oilcanhenry
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Originally Posted by Shawnsmith0666
My boost gauge wont go past 2 1/2 lbs I just bought the car I replaced the vacume hoses and the boost solenoid and still no luck. The vacume pressure on the bypass valve is good. I'm not sure what is going on every once in a while my car will throw a bypass circuit code anyone know what's going on?
Do you have any OBD II codes?
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Old Aug 10, 2019 | 2:02 PM
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Originally Posted by oilcanhenry
Do you have any OBD II codes?
Bypass circuit malfunction
Last edited by Shawnsmith0666; Aug 10, 2019 at 2:05 PM.
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Old Aug 10, 2019 | 3:24 PM
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which year? supercharged or turbo?
post the actual code pxxxx
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