# 4.0 TPS readings lil funny?

**URL:** <https://forums.speedlife.net/t/4-0-tps-readings-lil-funny/200821>\
**Category:** PittSpeed Automotive\
**Created:** [November 25, 2008, 8:08am UTC](https://forums.speedlife.net/t/4-0-tps-readings-lil-funny/200821 "2008-11-25T08:08:42Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![imported\_Sleeper](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/imported_sleeper/32/5939_2.png) [@imported\_Sleeper](https://forums.speedlife.net/u/imported_Sleeper)\
**Post date:** [November 25, 2008, 10:26am UTC](https://forums.speedlife.net/t/4-0-tps-readings-lil-funny/200821/5 "2008-11-25T10:26:11Z")

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> [@OFFICIAL '07-'08 BUFFALO SABRES SEASON THREAD](https://forums.speedlife.net/t/official-07-08-buffalo-sabres-season-thread/36504/388):
>
> Oh, didn’t know that…not sure what to tell you then. Do you have a service manual?
> 
> Another possibility is the fact that it’s freezing cold outside…does this Jeep have some sort of Idle Air Control or Fast-idle thermo valve? That would explain the unusually high throttle position at start-up.

Nah IAC is fine i just cleaned it. I took the TPS off and scanned and it was down to 4%, put it back on and back up again, now you dao have to twist the sensor a tad when installing to fit the butterfly end valve on the sensor itself and thats where it is getting the extra 16%. My previous one was like that as well. Maybe it has to be around 18-20% at idle but i highly doubt it

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