2005 2.5L Altima Engine Light Blinking
Please bear with me on this one, as I have limited information right now (I'm at work, and my wife just called me to describe the problem).
Background: 2005 Altima, 2.5L, gave code P0420 about two weeks ago so new Magnaflow stainless catalytic converter was installed. All has been well, until...
My wife called this morning and said the car ran like cr@p when she started it (after it sat overnight at a temperature that's roughly freezing plus or minus a degree or two). The Service Engine Soon light was blinking. She let the car warm up for a few minutes hoping for improvement, but no change.
About half an hour later, she had to drive to class so she gave it another shot. She said the car started right up and ran perfectly for the entire 15-mile trip.
I'll throw the code reader on it when I get home, but in the meantime I'm trying to imagine what the cause could be. Has anyone else experienced this and, if so, what did it turn out to be?
Thanks in advance.
Mark W. in MI