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stutter under boost


15+ Year Contributor
Dec 13, 2003
Bay Area, California
im currently having problem with my dsm, shes stuttering under boost after i drive her for 10-15 mins, but after driving it underboost for a few minutes it sort of goes away. I am now replacing plugs, wires (even though their brand new). CAS, TPS and the coil pack are on their way to be replace. I have not done a boost leak yet. Any other suggestions you guys can give me? Maybe the gap the plugs wrong :coy:


DSM Wiseman
Dec 22, 2002
Bear, Delaware
Could very well be a boost leak. Metered air is leakign out prior to combustion causing an over-rich condition. Could also be your plugs are fouling.

What plugs are you using? If not NGK BPR6ES gapped at .028-.032, buy those and put them in :dsm:
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