# Check Engine Light - ON and OFF

Posted by Mr. G (90 SE) on September 09, 2002 at 11:02:05:

Hello,

My cars check engine light turns on for about a day then the following day it turns on for about 15/20 minutes and then off for the same amount of time. It then stays on for almost all day. I took it to the nissan dealer and the told me that it was the EGR Valve and EGR Valve position sensor. TheY want $800 to repair this problem. My questions is that if something triggers the check engine light to come on, shouldn't it stay on until the problem is fixed or the check engine light reset? The cars seems to be running perfectly, except for the check engine light turning on. Can it be an electrical problem?

Please help me, i've taken my car to 3 mechanics and the nissan dealer and no one seems to pin point the problem. Everyone is just guessing and I've already spent a lot of money trying to fix this problem.

THANK YOU FOR YOUR HELP.

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: Hello, : My cars check engine light turns on for about a day then the following day it turns on for about 15/20 minutes and then off for the same amount of time. It then stays on for almost all day. I took it to the nissan dealer and the told me that it was the EGR Valve and EGR Valve position sensor. TheY want $800 to repair this problem. My questions is that if something triggers the check engine light to come on, shouldn't it stay on until the problem is fixed or the check engine light reset? The cars seems to be running perfectly, except for the check engine light turning on. Can it be an electrical problem? : Please help me, i've taken my car to 3 mechanics and the nissan dealer and no one seems to pin point the problem. Everyone is just guessing and I've already spent a lot of money trying to fix this problem. : THANK YOU FOR YOUR HELP.