Question about 1997 Mitsubishi Eclipse

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Boost cuts in and out only in 1st and 2nd gear at high rpm

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  • alex metro
    alex metro May 11, 2010

    are you running stock boost levels? what mods do you have?

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Possibly a bad boost control solenoid or bypass valve. The boost control solenoid is something to check online for - I'm not familiar enough to know where it is offhand. The bypass valve is on the pipe in the engine bay that leads from the outlet of the intercooler (passenger side, low in front) up to the throttle body. If that valve is bad, it may be causing your boost fluctuations.

Posted on Jul 26, 2008

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Check engine light on?

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Check with Porsche service (your closest dealer) for recalls or TSB (Technical Service Bulletins) related to your concern and check the cayman/boxster owners clubs for similar posts and resolutions.

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2nd gear crunch


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