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Discussion Starter · #1 ·
My 1998 6.5 smokes lots of black when it accelerate, I have a spring wastegate makes 10psi boost, plugged old wg vacuum line, new injectors, has no shaft play, spools good, getting real frustrated with this
 

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What condition is your air filter in?
 

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Did you ever fix your EGR system? Disconnecting it and plugging the EGR line can cause all kinds of problems unless EGR function is deleted with a PCM re-flash or tune.
Have you scanned for trouble codes?
 
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