# Acceleration problem
**URL:** https://forums.speedlife.net/t/acceleration-problem/126872
**Category:** SON240sx Automotive
**Created:** [August 3, 2009, 7:51pm UTC](https://forums.speedlife.net/t/acceleration-problem/126872 "2009-08-03T19:51:44Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@Wongger](https://forums.speedlife.net/u/Wongger)
#### Post date: [August 3, 2009, 7:51pm UTC](https://forums.speedlife.net/t/acceleration-problem/126872/1 "2009-08-03T19:51:44Z")
Ok, I have a problem and its going to be difficult to explain. Hopefully somebody can identify it.
Ok, so when I start to drive, first and second are very hesitant. So what this means, is when I push on the gas and rev it past 2k rpm. The car seems to drop a few rpm then go up then drop, its a very slight drop wouldnt even notice on the tach. But anyways, its annoying, and I am very paranoid that something is going to break.
oh, I have a stock ka, just a AEM intake.
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### Author:  [@Stiky](https://forums.speedlife.net/u/Stiky)
#### Post date: [August 3, 2009, 7:56pm UTC](https://forums.speedlife.net/t/acceleration-problem/126872/2 "2009-08-03T19:56:55Z")
Check MAF. Will the car let you go past 2500 RPM? Because I believe if you disconnect the MAF or there is a bad signal from it the motor will not let you go past 2500 RPM, as it is in protection mode or something like that.
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### Author:  [@Hacknik](https://forums.speedlife.net/u/Hacknik)
#### Post date: [August 3, 2009, 8:48pm UTC](https://forums.speedlife.net/t/acceleration-problem/126872/3 "2009-08-03T20:48:43Z")
Sounds similar to a vacuum leak, check all your vacuum hoses that lead to the AIV.
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### Author:  [@Wongger](https://forums.speedlife.net/u/Wongger)
#### Post date: [August 3, 2009, 8:56pm UTC](https://forums.speedlife.net/t/acceleration-problem/126872/4 "2009-08-03T20:56:57Z")
Hmm, ok. Its not the maf, although my maf does often come loose and I lose all power to the car.
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### Author:  [@Stiky](https://forums.speedlife.net/u/Stiky)
#### Post date: [August 3, 2009, 9:16pm UTC](https://forums.speedlife.net/t/acceleration-problem/126872/5 "2009-08-03T21:16:46Z")
:lol: well that always helps. :P, then yeah spray your engine bay down with some soapy water and check for bubbling around it, then wash your engine down. It’ll help you locate vacuum leaks. Make sure to keep it running though while doing so.
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### Author:  [@Jowo72](https://forums.speedlife.net/u/Jowo72)
#### Post date: [August 3, 2009, 9:39pm UTC](https://forums.speedlife.net/t/acceleration-problem/126872/6 "2009-08-03T21:39:02Z")
spraying brake cleaner around all the vaccum lines while the car is running works better, if the idle picks up, wherever your spraying the cleaner is being sucked into the engine there.
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### Author:  [@Wongger](https://forums.speedlife.net/u/Wongger)
#### Post date: [August 3, 2009, 10:00pm UTC](https://forums.speedlife.net/t/acceleration-problem/126872/7 "2009-08-03T22:00:43Z")
Ok, thanks for the help Ill try that tomorrow. So brake cleaner in the engine is ok?
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### Author:  [@Corey\_B](https://forums.speedlife.net/u/Corey_B)
#### Post date: [August 4, 2009, 8:33am UTC](https://forums.speedlife.net/t/acceleration-problem/126872/8 "2009-08-04T08:33:48Z")
you can also use a propane torch that is not lit and go over all or your vaccum lines, similar to brake cleaner, less mess.
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### Author:  [@Stiky](https://forums.speedlife.net/u/Stiky)
#### Post date: [August 4, 2009, 3:26pm UTC](https://forums.speedlife.net/t/acceleration-problem/126872/9 "2009-08-04T15:26:29Z")
I prefer soap and water, I power wash bay’s alot, really helps to clean up the look of the car and engine.
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### Author:  [@87s15lt1](https://forums.speedlife.net/u/87s15lt1)
#### Post date: [August 4, 2009, 4:24pm UTC](https://forums.speedlife.net/t/acceleration-problem/126872/10 "2009-08-04T16:24:08Z")
Intake problem. I.E MAF or leak.
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### Author:  [@Wongger](https://forums.speedlife.net/u/Wongger)
#### Post date: [August 8, 2009, 12:53pm UTC](https://forums.speedlife.net/t/acceleration-problem/126872/11 "2009-08-08T12:53:34Z")
Found the problem. My valve cover gasket blew. oil was leaking into my spark plugs.
Thanks for the help guys 🙂
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### Author:  [@87s15lt1](https://forums.speedlife.net/u/87s15lt1)
#### Post date: [August 10, 2009, 6:03am UTC](https://forums.speedlife.net/t/acceleration-problem/126872/12 "2009-08-10T06:03:21Z")
Always better when you can see the car.
Good job.