SES Light - On and off by itself

[lrwjr1964]

Hi all. Maybe someone can help me. This is the situation I am experiencing. 2 months ago my service engine light came on. I noiticed the X was bogging down slightly rough idle. Go to Advance Auto, they pull the code and say it's my O2 sensor. They reset and the light stays off for about 3 weeks then comes back on. Go back it's the same code. They reset. It stays off for a month. Now it comes on for a third time. I figure it's for the same thing. I take the X to work and when I get back in and start her up 6 hours later, waddaya know, the Service engine light goes right off. It stays off for another 3 weeks, the X felt like she was missing badly and it came on this past Wednesday, I went to the store came back home and Wednesday morning when I started her up the service engine light did not come on. Now I will say that each time before the light comes on the X starts to act up like sluggish performance, slightly rough ide. My question is, when the service engine light comes on shouldn't it stay on until the problem is fixed? Why does mine keep going out? mind you also that when the light goes out the X runs fine. Has anyone else experienced this? And yes i changed the IAC, cleaned the MAF, clean air filter. Can anyone shed some light on this?

 

[RobertJC]

In order to re-set the vehicle Manager, have you considered removing the neg. lead on your battery terminal for about five miniutes, and then re-attaching it. This usually solves the problem. if not, them=n you may have other problems.