# So who knows about Hyundai motors?  v.DOHC

**URL:** <https://forums.speedlife.net/t/so-who-knows-about-hyundai-motors-v-dohc/16774>\
**Category:** NYSpeed Automotive\
**Created:** [August 31, 2006, 12:26pm UTC](https://forums.speedlife.net/t/so-who-knows-about-hyundai-motors-v-dohc/16774 "2006-08-31T12:26:02Z")\
**Posts on this page:** 1\
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**Author:** ![TrueBlue](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/trueblue/32/7245_2.png) [@TrueBlue](https://forums.speedlife.net/u/TrueBlue)\
**Post date:** [September 8, 2006, 7:25am UTC](https://forums.speedlife.net/t/so-who-knows-about-hyundai-motors-v-dohc/16774/11 "2006-09-08T07:25:14Z")

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does it surge at all? no codes? a bad IAC will kind of “bounce” the revs about.  
if the TPS has a blank spot in the voltage range then it would not be felt at idle since there is no TPS activity at idle. however, a faulty TPS won’t throw a code and will effect drivability.

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