Thread: 96 R/T Check Engine Code 505 Idles up and down.
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Old 06-15-2008, 08:00 PM   #10 (permalink)
94 White RT
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Default Re: 96 R/T Check Engine Code 505 Idles up and down.
I wound think that a Idle Control system malfunction would be the IAC valve, which I swapped out with another car, and it still did not fix it. What other checks can I do to narrow down the problem.


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Originally Posted by ZombieMaster View Post
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