Hey everyone, my check engine light came on the other day and I was noticing poor fuel economy. I got it scanned and the p1404 code showed up. If i'm not mistaken this code means that the EGR pintle is stuck open. I found out that this problem is usually due to some carbon buildup and could be fixed by cleaning the EGR with some carb cleaner. I cleaned it up with the carb cleaner and the pintle seemed to be moving fine. I started the car back up and the engine light was still on.

I thought maybe its possible that I needed a knew one and found out it will cost $250 for a new one. I did some research and found out that alot of people who replaced the EGR still had the check engine light come on.

I did some more research and found some grand am owners who had the same code appear. They stated that a 'software reflash' is the real fix because the code is often a false alarm. Im not sure if this is true but here's the link: Pontiac Grand Am: DTC code P1404 - Car Forums - Edmunds

Can anyone let me know how to fix this problem and if there's any truth to this 'software reflash'???? thanks

 

When my Lumina had EGR problems I had to clean it with carb cleaner and ran Seafoam the intake. I'd make sure the code is cleared/clearing. And I'd pickup a junkyard EGR or too before ever buying a new one.

 

I deleted my EGR still get the code of course, but that will be gone as soon as I get a tune/ new pcm.

 

Did you try cleaning the EGR Tube going to the exhaust pipe and to the intake?

 

no, i didnt try that yet but i looked in both and they seemed clean