# How would you go about diagnosing this problem...

**URL:** <https://forums.speedlife.net/t/how-would-you-go-about-diagnosing-this-problem/29575>\
**Category:** NYSpeed Automotive\
**Created:** [May 20, 2007, 4:02pm UTC](https://forums.speedlife.net/t/how-would-you-go-about-diagnosing-this-problem/29575 "2007-05-20T16:02:12Z")\
**Posts on this page:** 1\
**Showing post:** 23

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**Author:** ![my240nissan](https://avatars.discourse-cdn.com/v4/letter/m/e19b73/32.png) [@my240nissan](https://forums.speedlife.net/u/my240nissan)\
**Post date:** [May 21, 2007, 2:37pm UTC](https://forums.speedlife.net/t/how-would-you-go-about-diagnosing-this-problem/29575/23 "2007-05-21T14:37:41Z")

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have you replaced your injector o-rings? did you install them correctly? do you know for sure you dont have a manifold and or vacc leak?

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