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ls6 intake post install problem

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Old Dec 17, 2005 | 10:19 PM
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Default ls6 intake post install problem

Smokey exhaust after ls6 intake install. Light colored exhaust. Any thoughts?
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Old Dec 17, 2005 | 10:22 PM
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Not sure??

Any leaks? codes?
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Old Dec 17, 2005 | 10:28 PM
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Originally Posted by Lithium
Not sure??

Any leaks? codes?
No leaks. It looks like it's running pig rich. Just looked under the car and theres alot of fuel coming from the exhaust. Is this the pcm not learning the intake yet? All guages are good. Starts and idles fine.
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Old Dec 17, 2005 | 10:37 PM
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Probley just need to get it tuned again.

Also like you said the pcm may just need to learn.

Other than that I really dont know...
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Old Dec 17, 2005 | 10:37 PM
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This is just a shot in the dark but maybe you damaged one or more injectors in during the swap.
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Old Dec 17, 2005 | 10:56 PM
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could have a vacuum leak. check your map sensor (the one on the back of the intake) is it pluuged in. is the vacuum line back there plugged in. brake booster hose, all injector conncetors tight, all injector oring ok, all pcv lines hooked upand the number one is the intake sealed to the cylinder head properly?
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Old Dec 17, 2005 | 10:58 PM
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I dont think I hurt the injectors. I left them on the rails and set the hole assebly to the side. Hell I did'nt even break the oil pressure sensor. Hope it's just a pcm relearn deal.
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Old Dec 18, 2005 | 08:49 AM
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Seems to me if the intake was'nt sealed to the heads there would be an idle problem. I'm pretty sure thats not the problem.
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Old Dec 18, 2005 | 11:40 AM
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Originally Posted by strippedSS
Seems to me if the intake was'nt sealed to the heads there would be an idle problem. I'm pretty sure thats not the problem.
You are correct in that assumption. Have you driven the car? if not take it for a 30 mile drive at different speeds so that the computer can learn the new flow characteristics. Then if the problem continues...you may need to get it retuned. Also check your MAF and TB connections are secure(rubber inlet/outlet tubing).
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Old Dec 18, 2005 | 01:25 PM
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Thanks for the help. I Just let the car run for a half hour or so and seems to be clearing up.
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Old Dec 18, 2005 | 01:26 PM
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Good to hear. It should clear up after some miles.
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Old Dec 18, 2005 | 03:16 PM
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yeah probrably the pcm learning. It took my about 100miles after putting on a ported ls6 manifold and ported 80mm t/b. It it doesn't check and make sure all your injectors are seated correctly.
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