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Volvo Forums - Volvo Enthusiasts Forum (https://volvoforums.com/forum/)
-   Volvo 850 (https://volvoforums.com/forum/volvo-850-16/)
-   -   Constantly hitting boost cutoff! frustrating.. (https://volvoforums.com/forum/volvo-850-16/constantly-hitting-boost-cutoff-frustrating-50281/)

gilber33 02-15-2011 08:34 AM
Originally Posted by matt01 (Post 256728)
even with the MBC im not boosting high enough for cutoff. i never boost near 14PSI..
but the gap is worth looking into.. ill check that. if i buy volvo plugs are they pre-gapped.. right now i have bosch or something..
Always check the gap before you put them in. Never assume they're pre-gaped.

But if you're running a cheap MBC, you could be getting boost spikes, hence cut off or misfires. What MBC are you using?

matt01 02-15-2011 02:11 PM
a cheap one off ebay.. but if it were a boost spike would you see the boost guage spike or not?


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