2.3 Intake problem - Performance Forum

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2.3 Intake problem
Tuesday, February 14, 2006 11:19 AM
Ok so I have the 2.3 manifold hooked up all vac lines are on etc. double triple checked I am running at 5000 RPM at idle throtle cable is loose TB is closed could it be soemthing to do with not having the EGR even though it is blocked?




Re: 2.3 Intake problem
Tuesday, February 14, 2006 1:47 PM
check your fuel injectors, i had the same problem, when i installed my intake one of the injectors was lifted up sucking in air, chek them
Re: 2.3 Intake problem
Tuesday, February 14, 2006 9:32 PM
what sensors are you using, and where are they all located.



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Re: 2.3 Intake problem
Tuesday, February 14, 2006 10:17 PM
You are sucking in A LOT of air that you aren't supposed to be. Check the bottom of the intake manifold for open ports. There are some pretty large one you have to block off on most of the castings. You may also have a warped flange or something, check the mating surfaces.



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Re: 2.3 Intake problem
Wednesday, February 15, 2006 6:40 AM
the sensors are all the same the only difference at all is the manifold so I dont understand there is no leaks on the bottom all are plugged it was on another 3rd gen 2.4 I was told it was bolt on but I'm starting to give up I will check the injectors I never thought of that



Re: 2.3 Intake problem
Wednesday, February 15, 2006 4:45 PM
so your using the 2.4 TB then? or your using the 2.4 sensors on the 2.3 TB?



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Re: 2.3 Intake problem
Wednesday, February 15, 2006 6:10 PM
make sure you moved the ground bolt/stud that was down by the starter on the block..... that will keep the manifold from sealing to the head, and cause a huge vacuum leak....... any open ports on the t/b that you didnt plug? is your brake booster line hooked up?




SPD RCR Z - '02 Z24 420whp
SLO GOAT - '04 GTO 305whp
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Re: 2.3 Intake problem
Thursday, February 16, 2006 6:06 AM
2.4 TB 2.4 Sensors every thing is plugged yet again i say this brake booster is hooked up every vac etc. ground is moved as well



Re: 2.3 Intake problem
Thursday, February 16, 2006 1:18 PM
It has to be a vacuum leak somewhere... Try spraying some WD40 around the intake if the RPMs pick-up there is a leak there...



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Re: 2.3 Intake problem
Sunday, February 19, 2006 12:12 AM
fix it yet?


SPD RCR Z - '02 Z24 420whp
SLO GOAT - '04 GTO 305whp
W41 BOI - '78 Buick Opel Isuzu W41 Swap

Re: 2.3 Intake problem
Sunday, February 19, 2006 12:24 AM
Which way did you clock the 2.4 TB? There's only one way it will work, and still seal on the bottom. otherwise, it's got an open hole.

I did that the first time






Re: 2.3 Intake problem
Sunday, February 19, 2006 8:52 AM
TB is clockeed corectly... (Lenko, this our old manifold) but Speedy might be on to something... cut that bolt off and see if it lines up better.

I'm personally stumped, there is a big ass leak somewhere but Justin says everything is good.

Good luck bro, the HO manifold is sweet once its working properly



Re: 2.3 Intake problem
Sunday, February 19, 2006 10:55 AM
That's a whore of a HO manifold I got it from Jas originally! LOL

Yes the ground bolt/stud need to be swapped.. otherwise it won't fit flush to the head.





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