# Stupid Car! HELP!

**URL:** <https://forums.speedlife.net/t/stupid-car-help/112119>\
**Category:** SON240sx Automotive\
**Created:** [December 30, 2007, 8:46pm UTC](https://forums.speedlife.net/t/stupid-car-help/112119 "2007-12-30T20:46:08Z")\
**Posts on this page:** 1\
**Showing post:** 31

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**Author:** ![izzy\_domain](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/izzy_domain/32/5583_2.png) [@izzy\_domain](https://forums.speedlife.net/u/izzy_domain)\
**Post date:** [February 5, 2008, 2:22pm UTC](https://forums.speedlife.net/t/stupid-car-help/112119/31 "2008-02-05T14:22:16Z")

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> [@WTB: obd2a p72 (needed by thrusday)](https://forums.speedlife.net/t/wtb-obd2a-p72-needed-by-thrusday/15642/4):
>
> its reallly easy to check and i dont see how you could mess up.

Lol well thanks for the motivation. I checked the engine for codes today.  
It threw a 34. Which according the the FSM it is the ‘Knock Sensor Circuit’. I called up a friend that works a dealership today, and hes getting a discounted price on a new one today. So I’m waiting on a reply from him. Hopefully I’ll be able to replace it tomorrow or the following day. Then I can erase the codes, and drive it around to see if the problem has disappeared once and for all. If not I guess its back to drawing board.

Does anyone know if a Knock Sensor could be causing my problem? Based on the symptoms I described.

Thanks Alot!

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