# Misfiring below 4k

**URL:** <https://forums.speedlife.net/t/misfiring-below-4k/44887>\
**Category:** NYSpeed Automotive\
**Created:** [March 12, 2008, 10:48am UTC](https://forums.speedlife.net/t/misfiring-below-4k/44887 "2008-03-12T10:48:00Z")\
**Posts on this page:** 1\
**Showing post:** 20

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**Author:** ![Carnut](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/carnut/32/7590_2.png) [@Carnut](https://forums.speedlife.net/u/Carnut)\
**Post date:** [March 31, 2008, 9:19am UTC](https://forums.speedlife.net/t/misfiring-below-4k/44887/20 "2008-03-31T09:19:48Z")

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> [@JCuz](#):
>
> update: checked timing and it was spot on, 15\*, checked for bad ground on maf, fine as is.
> 
> under light-moderate acceleration it will misfire above 4k, if you give it more gas it is just not as noticeable.
> 
> maybe distributor itself or even something with the fuel delivery?

Sounds like an EGR problem to me. Or a vacuum leak of sort

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