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Help/info needed

Paul Stevens

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Hi, I m new to forum chat but I m after some info/help

My 09 sti has a ppp fitted which felt very good, but after having a flat Battery I ve lost the performance and its a nightmare on fuel, anyone else heard or had this problem, and can anything be done to retreave power, thanks paul 

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Hi n welcome, Paul .

Can't say it's a common symptom but maybe if it had been remapped at some point ? It might have gone back to a different map , as some software allows duel maps .

Could be another fault ,misfire ,boost leak ,collapsed cat ect .

Any dash lights staying on ?

Maybe a ECU code read might help pin point any issues 

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