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Discussion Starter · #1 ·
i just changed my intake manifold gaskets because my 95 240sx se would shut off on idle. i have previously cleaned out the throttle body and it worked for a bit but then i found a leak and changed the gaskets but it just made the problem worse...so i changed the gaskets, this time upgraded them and the problem lessened but its still there... can u help?
 

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Several things to check:
- IACV valve may be dirty or not adjusted properly.
- Dirty spark plugs.
- Plugged up air filter.
- Bad air regulator.
- Major vacuum leak.
 

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The header would have to be mangled to cause major back pressure.
 
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