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Old 21 February 2009, 07:26 PM
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harrisard
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Default surging boost.....!!!!!!!!

hi,

i have a 03 wrx it has 3"de-cat, 3" milltek cat back and collins d/v these are the only engine mods.the boost is surging,sometimes holding back an somtimes boosts fine. really really annoying

someone please help me before i smash it up!!!!!!!!
Old 21 February 2009, 10:07 PM
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harrisard
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can any1 help me?????
Old 22 February 2009, 11:50 AM
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The rookie
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Its very likely you need either a remap or a non OE boost controller, I've no direct experience, but its not an uncommon problem with decat DP's and TD04's.

Simon
Old 22 February 2009, 06:52 PM
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harrisard
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bttt
Old 23 February 2009, 07:01 PM
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stevo73
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Same problem here with a 51 WRx but to make it more confusing the only mod is a cat back system fitted yesterday and the problem started before that?
Old 23 February 2009, 11:02 PM
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harrisard
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Originally Posted by stevo73
Same problem here with a 51 WRx but to make it more confusing the only mod is a cat back system fitted yesterday and the problem started before that?

let no if you solve the problen as i havent got a clue!

cheers
Old 23 February 2009, 11:13 PM
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bluenose172
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It' overboosting, the ECU is compensating using it's boost control strategy, you probably only notice it in higher gears. As mentioned, using an aftermarket boost controller or a remap will sort this.
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