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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Pcm codes

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Old 03-08-2011, 12:20 PM
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Pulled a code p1441 and p0507 from my 97 formula I would like to know possible causes thanks.
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Old 03-08-2011, 12:54 PM
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Originally Posted by rks1
Pulled a code p1441 and p0507 from my 97 formula I would like to know possible causes thanks.
P0507 Idle system high/Idle Air Control (IAC) valve responding
P1441 Evaporative Emissions (EVAP) system flow during non-purge
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Old 03-08-2011, 01:35 PM
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thanks whats the best way to correct
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Old 03-08-2011, 03:11 PM
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Originally Posted by rks1
thanks whats the best way to correct
I'd start by cleaning your IAC and inspecting all of your EVAP hoses.
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Old 03-08-2011, 03:35 PM
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Where.can I pick up a service manuel im new to lt1s
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Old 03-08-2011, 03:42 PM
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Or a.diagrahm of the evap and.iac system they.can post
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Old 03-08-2011, 03:45 PM
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Originally Posted by rks1
Where.can I pick up a service manuel im new to lt1s
Originally Posted by rks1
Or a.diagrahm of the evap and.iac system they.can post
Study this website and study it well:

http://shbox.com/page/index.html
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Old 03-08-2011, 04:08 PM
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Thanks
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