Car wont start

Information on the naturally-aspirated KA24E and KA24DE engines.
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ERI{K}ILLA
Posts: 14
Joined: Tue Jan 06, 2009 8:24 am
Car: '89 & '92 240sx'

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ka24de

So I worked on my car replaced intake mani and all the lines under it, then put everything back together and went to turn on the car. It turned on but was idling extremely rough;rpm's all over the place, so I killed it and went to check my vacuum lines.Sure enough I has accidentally disconnected most of them so I went to work and spent an hour making sure that each and every one was in the right spot.I go to turn the car on again and the same thing happens, so I go check my engine bay again and sure enough my Maf has been disconnected the entire time! So I plug it back in thinking that's all that was wrong with it but then I try to start it again and no It wont even idle anymore it just shuts off and when stepping on the gas the rpm's rise up all crazy and stuff. What is wrong?

Fuel lines are in the correct position

Installed brand new gasket , and did replace hoses from intake piping. I'm starting to think I didn't tighten the manifold enough because getting to those bolts sucks and I don't have enough leverage. Could that cause the problem?

No damaged to O rings, and pcv hoses is new and installed correctly

I am however missing the egrc bpt valve so the hose from the egr valve goes straight passed it "bypassing" it

I did tighten the grounds. 1 on front left corner of head/valve cover, and 2 on rear right? Are the 2 in back supposed to be over layed on each other? or on separate grounds?


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i_need_an_s15
Posts: 47
Joined: Tue Sep 04, 2007 5:10 pm
Car: 95 240sx

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User avatar
ERI{K}ILLA
Posts: 14
Joined: Tue Jan 06, 2009 8:24 am
Car: '89 & '92 240sx'

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Tried the tps, it's brand new. Again it will turn on just sputter and die. Black smoke when rev'd so I'm guessing it's getting too much fuel/not enough air or spark. checked plugs wires cap and rotor even bought new plugs and wires.

When I replaced the top portion of the intake mani the scv(swirl control valve) was replaced too since it was attached. The mani was used. I am missing the bpt vlave but have been even when the car was running. The hoses were re routed in order to bypass it and I'm pretty damn sure I put them back how they were. I really want to get this damn car running again and I have exhausted my limited mechanic abilities

silvia13guy
Posts: 3
Joined: Tue Dec 01, 2009 7:11 am
Car: 91 240sx hatcback

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did you try using the self diagnosis n see if you have any codes

rioredstang
Posts: 293
Joined: Sun Nov 30, 2008 3:47 pm
Car: 1993 240sx SCCA ITS
Location: Chattanooga, TN

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You cannot by pass the egr bpt. If you have manifold vacuum going straight to the egr valve it will not idle. Unplug the egr valve and plug the vacuum hose and try it. It should run.


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