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#1: Need help, my m20b20 l-jet rev cut at ~5500rpm Author: kura2,

Posted: Sun Mar 29, 2009 10:46 am
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Greetings sifus and grand sifus, i've read through quite a lot of forum and wikis and all of it mentioned m20b20 rev limit is at 6500rpm. If that's the case then what's causing mine to cut-off at around 5500rpm? Clogged fuel filter? Dirty injectors? or maybe spark plugs need replacement? Confused

#2: Re: Need help, my m20b20 l-jet rev cut at ~5500rpm Author: wks79,

Posted: Sun Mar 29, 2009 5:58 pm
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b4 anything , just bring ur car to the mech n check all the sparks, battery, ..fresh oil change all around ..new air filter/oil filter .
this is assuming u havent done a full service for the car .

it's a good idea also to check the injectors ,
i believe Optimum workshop has injector cleaning machine also .

ya ur engine shouldbe revving
to 6k rpm with no prob at all .
hope this helps

#3: Re: Need help, my m20b20 l-jet rev cut at ~5500rpm Author: highwaystar, Location: Kola Lompuer

Posted: Mon Mar 30, 2009 12:49 am
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my l-jet no cut off... most motronic does. go to mech and have it diagnose.
cheers

#4: Re: Need help, my m20b20 l-jet rev cut at ~5500rpm Author: kura2,

Posted: Mon Mar 30, 2009 6:21 am
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highwaystar wrote:

my l-jet no cut off... most motronic does. go to mech and have it diagnose.
cheers

ermmm, no cut-off for all l-jet or some mod required? Twisted Evil

#5: Re: Need help, my m20b20 l-jet rev cut at ~5500rpm Author: highwaystar, Location: Kola Lompuer

Posted: Mon Mar 30, 2009 8:53 am
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i dont even recall that ljet got cut off. mmm... mine when i bought no cut off lah... lemme check

#6: Re: Need help, my m20b20 l-jet rev cut at ~5500rpm Author: eezuan, Location: kuala lumpur

Posted: Mon Apr 06, 2009 9:12 am
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hello, as far as my experience, that is because off the afm spring is too loose, and it will over supply the fuel and you'll have the cutt off early..
that what i have experienced before la.. Smile

#7: Re: Need help, my m20b20 l-jet rev cut at ~5500rpm Author: lionel,

Posted: Mon Apr 06, 2009 10:09 am
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i think its not a cut off ......wat u feel is after 5000 rpm ur cant rev anymore ....

Many reasons cause tat happened .....

Check from most simple thing like fuel filter , injectors and air filter ....

I face d problem and found out its my open pot damm dirty and block d air flow ...so not enuf for d combustion ........rev stuck at 5000 rpm ....

#8: Re: Need help, my m20b20 l-jet rev cut at ~5500rpm Author: kura2,

Posted: Thu Apr 23, 2009 4:28 pm
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eezuan wrote:

hello, as far as my experience, that is because off the afm spring is too loose, and it will over supply the fuel and you'll have the cutt off early..
that what i have experienced before la.. Smile

any way to adjust? or have to get spare afm Sad

#9: Re: Need help, my m20b20 l-jet rev cut at ~5500rpm Author: kura2,

Posted: Thu Apr 23, 2009 4:33 pm
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lionel wrote:

i think its not a cut off ......wat u feel is after 5000 rpm ur cant rev anymore ....

Many reasons cause tat happened .....

Check from most simple thing like fuel filter , injectors and air filter ....

I face d problem and found out its my open pot damm dirty and block d air flow ...so not enuf for d combustion ........rev stuck at 5000 rpm ....

replaced fuel filter(rm40, expensive?) but still stuck at 5500 though rev smoother at lower rpm. will proceed to remove filter later when free.

#10: Re: Need help, my m20b20 l-jet rev cut at ~5500rpm Author: eezuan, Location: kuala lumpur

Posted: Fri Apr 24, 2009 6:23 am
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where u stayin? mind to meet up?

#11: Re: Need help, my m20b20 l-jet rev cut at ~5500rpm Author: kura2,

Posted: Fri Apr 24, 2009 8:37 am
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eezuan wrote:

where u stayin? mind to meet up?

damansara damai. meetup? surely can Very Happy

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