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Old 05-19-2009, 11:03 AM
1986nate 1986nate is offline
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Re: How is an EGR stuck open/closed code set?

Quote:
Originally Posted by SoCal LS-L View Post
Maybe ill try that too. I still dont understand how the ECU can detect a fault with the EGR valve itself. How can it know if the pintle is stuck open or closed without a sensor lead to the EGR? Knowing this will help me find the real problem with my low idle, as my only code is the 56.
by vacuum or some other type of pressure i would think...
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