2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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on/off boost, please help

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Old 11-20-02, 08:29 PM
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Question on/off boost, please help

my 87tII will boost like a light switch, sometimes cruising i'll gas it and it will run like my na other times it will boost instantly and redline right now,off /on off/on. new engine idles perfect starts normall. 2 1/2 dp, 2 1/2 mp bonez intake stock y pipe and mufflers.whats really weird is when im not geeting boost i'll fan the clutch like on a dirt bike and it'll get full boost like something stuck or clogged then it frees it self up. any help would be apprciated thanks
Old 11-20-02, 10:42 PM
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check your waste gate lines, also your turbo maybe going bad....take off the TID and check compressor play....
Old 11-21-02, 12:01 AM
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does your on/off boost have HESITATION in between?
it could be fuel cut...

-mike
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