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Old 27 Oct 2013, 12:46 am
Junior Member
Join Date: Jul 2013
Posts: 3
Default why wont my acura rsx increase rpm?

2002 Acura RSX Base model 157k miles 5 speed.

i probably replaced the clutch about 2 months ago.

so basically once i hit 4000 RPM the car wont accelerate anymore. no matter what gear im on. it wont go any faster than 4000 RPM. not even if i floor it. so the fastest my car can go is about 85 mph.

why is this happening? what causes it? what do i need to fix? and how much will it cost me?
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Old 27 Oct 2013, 01:01 am
Junior Member
Join Date: May 2013
Posts: 11

Might be the problem lies in Throttle possition sensor or you might have problem in your Catalytic converter, you might also want to check your Neutral Safety Switch. It could be sending out some bad readings and would have to be adjusted, make sure about all these things.
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Old 27 Oct 2013, 01:18 am
Ian Ian is offline
Join Date: Sep 2007
Posts: 54

Ask yourself if you have a vtec and if you say no thats your whole problem!
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Old 27 Oct 2013, 01:32 am
Join Date: Jan 2008
Posts: 44

Probably a sensor, your computer not letting you accelerating, like a limiter. Also maybe there is not enough air going through, which might have to do with sensors. Question is, have you had anything else done to your car? And when did this problem start happening? Did start doing it right after new clutch install? Do you hear any noises?

I don't really see why a clutch would do it. If synchros were not working you would hear grinding, or it would go hard in gear, but it wouldn't really accelerate at all.
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Old 27 Oct 2013, 01:46 am
Senior Member
Join Date: Aug 2007
Posts: 478

check engine light on ? if so ck code and follow trouble shooting for that code(the answers from the gentlemen below would cause check engine light to be on.and none really make sense for this vehicle anyway,sorry)(fyi there all I-vtec ian, lol)
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Old 27 Oct 2013, 02:01 am
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Join Date: Oct 2007
Posts: 14

Check all the wires when you replaced the clutch, If you replace it , if not take it to the place you had it replaced at. It sound like your VTEC solenoid.
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