Idle problems

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nb07bcar
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Joined: Thu Jul 07, 2005 9:47 am

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I just finished my Ka-T build and am having problems ideling? It comes to idel but it seems to be in a lamda mode. It tries to find a good place to idel, but cant pick out a spot. It will run lean like 18 then go all the way to 10 and almost stall. anyone have any sugestions?


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Craving4Boost
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Car: 91 240sx fastback

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what is your fuel management....what injectors do you have....whats your boost gauge say...do you have a wideband....is your EGR still connected..have you tried looking for vacuum leaks yet....please give us more details.

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JDMEnthused
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eh.. i had the same problems on my N/A KA the other day... its more than likely a vacuum(sp).. its quite a common problem but its easy to fix, just make sure all the vacuum lines are connected and tight and nothing is missing or loose..

nb07bcar
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Joined: Thu Jul 07, 2005 9:47 am

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Safc2, 42lb injectors. I have the egr hooked up to my air filter. No vacume leaks. when I'm lean I am about -10psi and when i'm rich-20psi

nb07bcar
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Joined: Thu Jul 07, 2005 9:47 am

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also a wideband plx 300

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Craving4Boost
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Car: 91 240sx fastback

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nb07bcar wrote:Safc2, 42lb injectors. I have the egr hooked up to my air filter. No vacume leaks. when I'm lean I am about -10psi and when i'm rich-20psi
take off the EGR and block it off completley. what do you mean-10psi/20psi? do you mean inhg?? you should be be -20inhg vacuum at idle. what are you dec. air settings for the safc. what airflow are you at idle on your safc monitor. if its 0% that means your MAF isnt hooked up right. and since your using 42lb injectors i assume your using a z32 MAF. recheck the MAF wiring

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JDMEnthused
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if your looking to block the EGR off just fab up a kinda thin but not too thin piece of metal and fit it down over it..

nb07bcar
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YA -10-20inces of mercury sorry. My decel air is fine. I think I'm at 2.4% ne1 1.0 ne2 2.5. I will try blocking off the egr and rechecking my engine for vacume leaks. I am stock maf for now. it reads reads between .7-1. When the car idels fine it reads .8-.9, but when the idel is acting up it moves from .7-1 or 1.2.

take off the EGR and block it off completley. what do you mean-10psi/20psi? do you mean inhg?? you should be be -20inhg vacuum at idle. what are you dec. air settings for the safc. what airflow are you at idle on your safc monitor. if its 0% that means your MAF isnt hooked up right. and since your using 42lb injectors i assume your using a z32 MAF. recheck the MAF wiring[/QUOTE]

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GEO
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JDMEnthused wrote:if your looking to block the EGR off just fab up a kinda thin but not too thin piece of metal and fit it down over it..
Guys PIntoTech.com sells these things for the EGR blokc off. You cna either go there or talk to Anthony ( Structure240sx) about getting one.

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GEO
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BTW, I got a PintoTech EGR plate.. WORKS GOOD.

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Craving4Boost
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Car: 91 240sx fastback

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GEO wrote:BTW, I got a PintoTech EGR plate.. WORKS GOOD.
i also got one from anthony. i perfered his because it makes you take the WHOLE egr off. not just block it off where the pipe comes off. i think it makes it a lot easier because its easier to do it with the engine still intact. the owner before me sealed the pipe to the EGR so that was another reason i had to take it completley off. And for the people who didnt take it off yet, YES it afftected my drivibility very much. i would get constant jugs just cruising around the block, very annoying


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