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Idling problem after cam swap

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Old Nov 6, 2011 | 11:56 AM
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ihdude's Avatar
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Default Idling problem after cam swap

I have a 6.0 that I just put an EPS 226/230 110 LSA cam in. The truck is now idling at 700 rpm but keeps dying. This is with a manual transmission. I have a trailblazer SS intake with an Edelbrock 90 mm throttle body on it also. I tried adjusting the idle screw on the throttlebody but it doesn't seem to change the idle speed any. The truck will idle fine but if you give it gas, it drops below 700 and dies out. Will a computer tune bumped up to 900 rpm fix this problem? Thanks in advance.
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Old Nov 6, 2011 | 04:45 PM
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If its not tuned for the cam thats your problem..
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Old Nov 6, 2011 | 05:34 PM
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You need a tune with almost any if not every cam install, especially that one. Get it tuned it that will fix your prob
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Old Nov 6, 2011 | 05:39 PM
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As mentioned above, the PCM needs to be adjusted to compensate for the extra air and fuel that cam will be moving. Since it's idling fine, I highly doubt that the idle speed will need to go any higher, but MAF, VE, etc. now need attention.
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Old Nov 6, 2011 | 08:43 PM
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plus 1 on the tune.
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Old Nov 6, 2011 | 08:54 PM
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Get it tuned and put the throttle body settings back the way they were
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Old Nov 6, 2011 | 09:14 PM
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Get with a sponsor on the right for a tune.
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