intake manifold - help
May 14, 2011, 09:29 PM
#1
intake manifold - help
i just noticed that at the end of my intake manifold i have an open nipple? next to the oil dip stick there's a brass bracket that holds an electrical harness and what looks like a nipple for vac or something, can someone please tell me what this is for
i been looking for intake manifold diagrams but i cant find anything that tells me what its for
i been looking for intake manifold diagrams but i cant find anything that tells me what its for
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May 15, 2011, 03:47 PM
#8
i have a check engine light on and i got the code pulled - p300 / random multiple misfires im not sure if this is whats throwing the code or not?
can i t-tap into the fuel pressure regulator vac line for boost gauge reading?
thanks for helping guys!!
can i t-tap into the fuel pressure regulator vac line for boost gauge reading?
thanks for helping guys!!
Last edited by bbyevo8u; May 15, 2011 at 04:35 PM.
May 15, 2011, 04:53 PM
#10
my FPR vac line go's to a nipple on the top left side of the manifold, i found a engine bay picture of the nipple that my FPR vac line is hooked up too but the picture show it different, the top left nipple on the intake manifold jumps rite over to the nipple on the side of the manifold thats on the brass bracket i spoke about in the beginning of the thread and the FPR vac line go's under the manifold in the picture, im so confused rite now
May 15, 2011, 05:31 PM
#11
which line do you tap into off the manifold?
my FPR vac line go's to a nipple on the top left side of the manifold, i found a engine bay picture of the nipple that my FPR vac line is hooked up too but the picture show it different, the top left nipple on the intake manifold jumps rite over to the nipple on the side of the manifold thats on the brass bracket i spoke about in the beginning of the thread and the FPR vac line go's under the manifold in the picture, im so confused rite now
my FPR vac line go's to a nipple on the top left side of the manifold, i found a engine bay picture of the nipple that my FPR vac line is hooked up too but the picture show it different, the top left nipple on the intake manifold jumps rite over to the nipple on the side of the manifold thats on the brass bracket i spoke about in the beginning of the thread and the FPR vac line go's under the manifold in the picture, im so confused rite now
Mikey
May 15, 2011, 05:32 PM
#12
at the top of the picture you see the open brass nipple, should it be capped off or hooked up?
i really want to know why im throwing a p300 random multiple misfire code
Thanks for helping Mikey!!
i really want to know why im throwing a p300 random multiple misfire code
Thanks for helping Mikey!!
Last edited by bbyevo8u; May 15, 2011 at 05:37 PM.
May 16, 2011, 07:57 PM
#15
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Take your plugs out and check the gap. What spark plugs are you running? This will cause the problem also. If you are not sure how to do this, please have a certified mechanic do this for you. As for the Check engine light. Do you mean P0300? That stats a random misfire, commonly caused by a faulty coil, spark plugs, o2 sensor, egr, or fuel injectors. My guess is, that your egr vacume hose has popped off. Are you running a test pipe(catlytic converter)? If so, you will need a cel fix or have a tuner disable this o2 for you?