# warmup sequence idle - is this normal, read desc.

**URL:** <https://forums.speedlife.net/t/warmup-sequence-idle-is-this-normal-read-desc/88992>\
**Category:** SON240sx Automotive\
**Created:** [September 27, 2005, 11:19am UTC](https://forums.speedlife.net/t/warmup-sequence-idle-is-this-normal-read-desc/88992 "2005-09-27T11:19:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\
**Post date:** [September 27, 2005, 11:19am UTC](https://forums.speedlife.net/t/warmup-sequence-idle-is-this-normal-read-desc/88992/1 "2005-09-27T11:19:47Z")

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hey guys everytime i start my car instead of idling at ~2000rpm like its supposed during the warmup sequence it jumps up and down every second for about 7-8 times, from 2000, drops to 1000, then revs back up on its own, i thought this could be a vacum leak, but i cant seem to find one, let me know if you guys know anything about this, also, my car seems to rev slower now…