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Boost Gauge Tips needed/ Questions

190 Views 2 Replies 2 Participants Last post by  04RedLineGuy
So I have a 04 Saturn Ion redline I installed a glow shift boost gauge, vacuum seems good at -20 but when I full throttle it, it doesn’t boost past 0. Any any ideas as to why? Fully stock Saturn
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Take a look at this thread for a good location to tap for a line

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