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Chevy Power 10-31-2005, 02:12 PM Yesterday while traveling back from Good ole Va, we stopped for a soda and when we started again as soon as I started it up the Service Eng Soon light came on. It drove back to Missouri just fine, had the code read this morning at Autozone at it had a code of 4040, something to do with the EGR System. Any words of wisdom out there? Thanks in advance. mikek996 10-31-2005, 06:32 PM do you mean p0404? mikek996 10-31-2005, 06:37 PM that code means the actual and desired egr pintle position was not the same for 13 seconds or more. sometimes a chunk of carbon can hang the valve open. if it idles smooth the valve is not stuck open. I would get it cleared and see if it happens again. Chevy Power 10-31-2005, 07:23 PM Yes that it what I meant was p0404, sorry about that. It idled pretty smooth to me of course most of the time I was traveling at 70-80 mph. The only time we stopped was for gas and it did just fine, I didn't notice anything out of the ordinary. Autozone said they couldn't clear it because of liability reasons or something. Is there any way I can clear it myself? Or does it need to be done with a computer? boondokr 11-01-2005, 08:57 AM You can rent the scanner that they plugged in for free (with a $200 deposit) and clear it yourself. Chevy Power 11-01-2005, 10:30 PM I didn't even think about that. I'll have to do that. | ||