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.
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Boost problems

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Old July 30th, 2019, 11:32 AM
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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?
Old July 30th, 2019, 2:11 PM
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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?
Old August 10th, 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; August 10th, 2019 at 2:05 PM.
Old August 10th, 2019, 3:24 PM
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which year? supercharged or turbo?
post the actual code pxxxx




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