507 code

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Lyn

507 code

Unread post by Lyn » Sat Aug 22, 2020 10:38 pm

Hi, We have a 2001 Chevy Astro 4.3 Van & we've replaced everything but the P507 code keeps coming back! Can you help...I've changed everything! Thanks.

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carriedi
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Joined: Wed Apr 10, 2013 12:42 pm

Re: 507 code

Unread post by carriedi » Sun Aug 23, 2020 10:51 pm

has anyone tampered with the idle adjuster? They come sealed but many times people will remove the cap and adjust the idle setting and that may not let the computer make up for the throttle settings.

Normally, the computer sets the throttle to a predetermined position from fully closed. If the predetermined setting and the engine RPM do not match you will usually get a code.

Have you tried to use a scanner to control the Idle Air Control (IAC) Moving the rpm up and down? the scanner should allow you to tell the computer to set the rpm to a certain number and the computer should change the engine rpm to match the setting you tell it to go to.

How is the engine idling now?

What is everything? When you say you replaced everything.

When you reset the codes, when does the P0507 code come back? Does it come back on when you turn the key to the run position but don't start the engine yet? Does it wait until the engine is running? Does it come on right away when the engine starts or do it take some time before the code comes back?

Does your scanner show the parameters for the IAC and the rpm?

Did you have any other codes recently?

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