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Discussion Starter · #1 ·
I have recently bought an evo 9 but it has a boost issue where it will not hold consistently, the graph is up and down like a sluts panties!
Any ideas? has a Gizzmo boost controller fitted also.
 

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Premium Member
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314 Posts
Discussion Starter · #3 ·
Might be worth getting a vac tester out then, perhaps take the actuator off. it's an 80 series turbo but don't know what actuator is on it
 

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It's more likely and exhaust leak, in particular from the manifold flange to the cylinder head.
 
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