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high exhaust pressure

  1. 99 7.3 check engine light programmer spitting codes

    99-03 7.3L General Discussion
    I have a 99 f250 7.3 straight pipe back with a bullydog triple dog and a banks ram air stage 2. Whenever i get on it when the programmer is on extreme or performance i end up with check engine light and my programmer shows codes like high turbo circuit and high exhaust pressure what would be a...