# Help, Car running lean at idle

**URL:** <https://forums.speedlife.net/t/help-car-running-lean-at-idle/124674>\
**Category:** SON240sx Automotive\
**Created:** [May 21, 2009, 7:35pm UTC](https://forums.speedlife.net/t/help-car-running-lean-at-idle/124674 "2009-05-21T19:35:52Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Gt35r.com](https://avatars.discourse-cdn.com/v4/letter/g/dc4da7/32.png) [@Gt35r.com](https://forums.speedlife.net/u/Gt35r.com)\
**Post date:** [May 21, 2009, 9:11pm UTC](https://forums.speedlife.net/t/help-car-running-lean-at-idle/124674/7 "2009-05-21T21:11:44Z")

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> [@200 person fight at elmwood Regal](https://forums.speedlife.net/t/200-person-fight-at-elmwood-regal/22116/15):
>
> if anything, the FMU doesn’t regulate the increase of fuel pressure till it hits boost, so that wouldn’t be the culprit…rather the injectors and other fuel related things would be the problem, especially considering the lean idle.

i didnt even realise he was running an FMU. An FMU still controls the flow at idle though. The other “fuel related problems” could be some what resolved if we knew the fuel pressure at idle.

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