# sr20 won't rev past 2500 rpm

**URL:** <https://forums.speedlife.net/t/sr20-wont-rev-past-2500-rpm/113962>\
**Category:** SON240sx Automotive\
**Created:** [March 18, 2008, 10:29am UTC](https://forums.speedlife.net/t/sr20-wont-rev-past-2500-rpm/113962 "2008-03-18T10:29:03Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![240rex](https://avatars.discourse-cdn.com/v4/letter/2/54ee81/32.png) [@240rex](https://forums.speedlife.net/u/240rex)\
**Post date:** [March 18, 2008, 10:29am UTC](https://forums.speedlife.net/t/sr20-wont-rev-past-2500-rpm/113962/1 "2008-03-18T10:29:03Z")

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i started up my car today and let it warm up for a bit. i tried revving it up but the bugger won’t rev past 2500 rpm…where would i possibly start.  
i have a FMIC, sohc maf from KAE, walbro pump. everything else is stock.  
help would be greatly appreciated.

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**Author:** ![Jowo72](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jowo72/32/5560_2.png) [@Jowo72](https://forums.speedlife.net/u/Jowo72)\
**Post date:** [March 18, 2008, 10:51am UTC](https://forums.speedlife.net/t/sr20-wont-rev-past-2500-rpm/113962/2 "2008-03-18T10:51:28Z")

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Sounds potentially like a MAF reading issue, try cleaning it and checking the connections.

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**Author:** ![simplemind7](https://avatars.discourse-cdn.com/v4/letter/s/0ea827/32.png) [@simplemind7](https://forums.speedlife.net/u/simplemind7)\
**Post date:** [March 18, 2008, 10:53am UTC](https://forums.speedlife.net/t/sr20-wont-rev-past-2500-rpm/113962/3 "2008-03-18T10:53:33Z")

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really sounds like MAF to me aswell.

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**Author:** ![DJPyro](https://avatars.discourse-cdn.com/v4/letter/d/278dde/32.png) [@DJPyro](https://forums.speedlife.net/u/DJPyro)\
**Post date:** [March 18, 2008, 1:12pm UTC](https://forums.speedlife.net/t/sr20-wont-rev-past-2500-rpm/113962/4 "2008-03-18T13:12:03Z")

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I’ll give you $50 if it ISN’T the MAF. Check the plug first, might have just gotten knocked loose. I had that happen to me while installing a new air filter, couldn’t figure out why the car was running like crap…

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**Author:** ![240rex](https://avatars.discourse-cdn.com/v4/letter/2/54ee81/32.png) [@240rex](https://forums.speedlife.net/u/240rex)\
**Post date:** [March 18, 2008, 5:25pm UTC](https://forums.speedlife.net/t/sr20-wont-rev-past-2500-rpm/113962/5 "2008-03-18T17:25:29Z")

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ok, thank you for the opinion guys, i will check it out as soon as possible. keep you updated