# injector latency and PFC

**URL:** <https://forums.speedlife.net/t/injector-latency-and-pfc/96792>\
**Category:** SON240sx Automotive\
**Created:** [June 10, 2006, 9:00am UTC](https://forums.speedlife.net/t/injector-latency-and-pfc/96792 "2006-06-10T09:00:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Alex](https://avatars.discourse-cdn.com/v4/letter/a/db5fbb/32.png) [@Alex](https://forums.speedlife.net/u/Alex)\
**Post date:** [June 10, 2006, 9:00am UTC](https://forums.speedlife.net/t/injector-latency-and-pfc/96792/1 "2006-06-10T09:00:37Z")

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im trying to figure out why my car is running like shit and im wondering if it has anything to do with my injector latency settings on the power fc. i have DW 550 injectors. i’ve been told dw 550’s are 0.75, stock 370’s according to apexi are 0.58. so i entered a +0.17 correction factor for each injector. does this seem right? any other ideas as to why my car wont idle?

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<div class="post-metadata">

**Author:** ![Gonad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gonad/32/5481_2.png) [@Gonad](https://forums.speedlife.net/u/Gonad)\
**Post date:** [June 10, 2006, 10:01am UTC](https://forums.speedlife.net/t/injector-latency-and-pfc/96792/2 "2006-06-10T10:01:38Z")

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Did you try running the Power FC without the new injectors?

At least get your motor running fine with the PFC settings and then mess with injectors.