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Old 8th December 2018
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KaMiKaZi_t0M KaMiKaZi_t0M is offline
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After 4000 RPMS your turbo is out of its efficiency zone, which will naturally cause the boost pressure to drop. With using a MBC you are most likely developing too much boost down low, coupled with the stock timing advance the computer is causing a fuel cut condition. Dial back boost, or as rawill suggested join us at trionictuning.com and learn how to really tune your saab!
Tom
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