650 code....help plzzz

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Jul 10, 2009 | 08:43 PM

LS-1<>57

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Staging Lane

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From: Milford, Michigan

650 code....help plzzz

Hi guys - all of a sudden I have started to get a breif motor stumble and then a 650 code popping up. Any ideas on what that is all about..?? I see that code is a Malfunction Indicator Light (MIL) but what the heck does that mean.....

Thanx in advance for any help..!! DK

Jul 12, 2009 | 07:44 PM

LS-1<>57

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Staging Lane

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From: Milford, Michigan

TTT....anybody..?

Jul 12, 2009 | 08:06 PM

SSlow 4.8

TECH Junkie

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From: Flowery Branch, GA

thats a voltage code.. directly related to pcm control.

read more here:
http://www.hotrodlane.cc/New%20LS%20...TC%20P0650.htm

is this the code that some fbody owners were getting after they washed their engine bay and shorted the pcm? I dont remember... was many years back.

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