93 SSEI superchager boost question - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-10-2007, 12:40 PM   #11
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I would not leave it like that until you fill the tank with 91 or better fuel and get it scanned to see if the PCM is dumping boost on purpose. Or if you wanted to spend ~$40 on a hunch, get a new BCS (boost control solenoid). Some places may call it simply a "valve kit".
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Old 08-10-2007, 12:40 PM   #12
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i ment the bca cylinder sorry.
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Old 08-10-2007, 12:41 PM   #13
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i scanned it with the new code scanner all that came up was passenger side speed sensor and code 56 the book didnt say what code 56 is
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Old 08-10-2007, 12:45 PM   #14
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I meant a live scan (with a full scan tool) while driving. Goose it. There should be a parameter "boost %" or "boost duty cycle" or something like that. If it doesn't say 100% when you are hard on the gas, the PCM sees a problem and is dumping boost on purpose. I can look at my PSM later when I get home to see the diagnosis of code 56.

If it always says 100%, but you don't get 100% boost, you need to get a new BCS.
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Old 08-10-2007, 01:02 PM   #15
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ok i found the bcs and i am going to the junkyard they have a 95 ssei supercharged hopefuly its the same and ill try changeing it, i appreciate it alot! i am very happy i have boost now!
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Old 08-11-2007, 09:46 AM   #16
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THANKYOU ~J WIKOFF~ IT WAS THE SEILONOID now the car goes great i appreciate it alot.
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Old 08-11-2007, 12:24 PM   #17
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Anytime.
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