revs up and down

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gobbler
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revs up and down

Postby gobbler » Fri Feb 09, 2007 1:20 pm

iv just got my t2 going and it gos gud running 10psi BUT my revs go up and dwn between 1000 and 2000 rpm iv done every thing i can and think of culd any of u guys help
Iv been trying 2 look in the gallery 2 make sure that i have every thing hooked up rite but it keeps coming up error

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James
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Postby James » Fri Feb 09, 2007 2:10 pm

Do a search for "idle hunt" its a VERY common problem. Pretty much either you have you idle poorly adjusted, need to fiddle with your autochoke, or you have a post-throttle body vacuum leak.

gobbler
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revs up and down

Postby gobbler » Fri Feb 09, 2007 2:18 pm

ill have a look im after a digrame or the hole inlet 2 make sure every thing is in the rite place

sin-city_turbo
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Postby sin-city_turbo » Fri Feb 09, 2007 2:21 pm

my t1 did that when i took out the air-con. it was just one of the hoses from the black box that hadnt been plugged up

gobbler
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revs up and down

Postby gobbler » Fri Feb 09, 2007 2:23 pm

i have taken mine out what hose is that i have 2 block up

Hyperblade
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Postby Hyperblade » Fri Feb 09, 2007 3:14 pm

bigelboe wrote:Do a search for "idle hunt" its a VERY common problem. Pretty much either you have you idle poorly adjusted, need to fiddle with your autochoke, or you have a post-throttle body vacuum leak.


We pulled apart the autochoke, they can get crap up there in the water pipes, cleaned it out set it, and now the car doesn't idle hunt. Often the Autochoke will jam as well.

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James
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Postby James » Fri Feb 09, 2007 5:44 pm

Kazee recently confirmed my idea that the reason for idle surge is the engine braking fuel cut.

Essentially if your engine is above ~72deg/c and above 1250rpm and there is no throttle input the ECU cuts the fuel to the engine cause it thinks your trying to engine brake, then when the revs drop back down it gives it gas and on and on.

So pretty much you have an idle problem if its surging, whether its a vacuum leak letting extra air in and raising the idle or the autochoke failing to close all the way or the throttle plate stopper incorrectly adjusted or some other creative issue.

gobbler
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revs

Postby gobbler » Fri Feb 09, 2007 5:53 pm

thanks man i had ago this rvo and got the idle sorted but when u start it when its warm the ravs go up and dwn 4 a little bit then stop just got that 2 sort out

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Postby turbo11 » Sun Feb 11, 2007 9:05 am

Hey Bigelboe, i had a look at that article from Kazee last night and every city turbo owner should read it. Very helpfull and should be able to fix nearly all hunting probs.

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James
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Postby James » Tue Feb 13, 2007 5:44 pm

Babelfish often doesnt work with some japanese sites. I find google translate to be better, especially with the Honda website.

http://www.google.co.nz/language_tools?hl=en


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