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Evo X General General discussion on the 2008+ Mitsubishi Lancer Evolution X

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Old 05-22-2019, 05:33 PM   #1
dragon831
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Car sat for a month - now no boost :-(

Car is fully built with custom fuel setup and a gtx 3582.

The car hasn't run in a month. I jumped it today and took it for a drive. I drove it calmly for about 20 mins then decided to get on it a little harder.

When I get near 4.5 - 5k rpm (usually where the boost starts) it kind of hesitates. It seems like it's quickly building boost and releasing over and over really quickly causing the car to jerk back and forth. Obviously I let go of the pedal before causing and damage. I waited a few minutes and tried it once more to confirm and the same thing happened. I havent had time to get out and take a look at anything yet but I'm just asking if there's anything in particular I should look for first? Thanks.
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Old 05-26-2019, 03:32 PM   #2
KTMrider
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I would suspect that you have a boost leak. Visually, I would start by checking all the couplings, intercooler pipes, and vacuum lines. If you can’t find anything visually then a boost leak test would be next. At this point you should be able to find the problem.
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