# \*\* Car won't rev past 2500rpm \*\*
**URL:** https://forums.speedlife.net/t/car-wont-rev-past-2500rpm/158006
**Category:** SON240sx Automotive
**Created:** [July 18, 2010, 9:35am UTC](https://forums.speedlife.net/t/car-wont-rev-past-2500rpm/158006 "2010-07-18T09:35:08Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@1991s13](https://forums.speedlife.net/u/1991s13)
#### Post date: [July 18, 2010, 9:35am UTC](https://forums.speedlife.net/t/car-wont-rev-past-2500rpm/158006/1 "2010-07-18T09:35:08Z")
hi guys i have a 1991 240sx it wont rev past 2500rpm i belive its the maf but i have no way to check i need help i live in the south end of barrie please help!
Jesse
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### Author:  [@91S131](https://forums.speedlife.net/u/91S131)
#### Post date: [July 18, 2010, 9:45am UTC](https://forums.speedlife.net/t/car-wont-rev-past-2500rpm/158006/2 "2010-07-18T09:45:50Z")
unplug maf and check idle or rev to see if it smooths out, If it does maf is the problem
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### Author:  [@Singh](https://forums.speedlife.net/u/Singh)
#### Post date: [July 18, 2010, 9:53am UTC](https://forums.speedlife.net/t/car-wont-rev-past-2500rpm/158006/3 "2010-07-18T09:53:54Z")
if car runs the same with or without maf connected, its maf.
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### Author:  [@1991s13](https://forums.speedlife.net/u/1991s13)
#### Post date: [July 18, 2010, 2:20pm UTC](https://forums.speedlife.net/t/car-wont-rev-past-2500rpm/158006/4 "2010-07-18T14:20:20Z")
thanks for the advice! yeah it was working okay before i took out the stock intake and put in the new AEM one…