2001 Nissan Sentra "check engine light went" Questions

...Check engine soon light on. I went by Advance yesterday and had it checked. They said gas cap was loose. It went off and came back on today. I bought a new cap and still have the light on. Any ideas? ...

...check engine light is on and flashing & my car is shaking bad! i have a 2000 kia sephia. 77000 mi. i just got the whole car rewired, a new starter and a used alternator. i went to get an oil ...

...39;s coming from the front end. If the check engine light is on, there's a code stored and getting the code read is your starting point...ALWAYS Check engine light on Part Ricks Free Auto Repair ...

...check engine light on,from what you are describing though, I am going to sugest you look for vacum leaks, broken hoses and such and also listen for a wistling sound. I also had this happen to me but ...

check engine light come on for me as well. Mine was because I put an after market cold air intake system and I took care of my filter by cleaning and replacing it when needed. If you have this or an a

...turns over but it doesn't want to start. If it does start, the power is down from what it usually is. Check the Mass airflo sensor, Mine went out and did not start. Check engine light shows air ...

...check engine light came on so i took it to a shop .They did a diagnosis found that the DTC #32 Egr system problem . the light went off but came back on after my wife used it for the day. Please help ...

...engine soon light is on. had a o2 code. replaced sensor and light went off for 1 day. light back on same sensor. any thoughts? its could be a loose of harness or connectors. check continuity between ...

...check engine light went on. Could the dirty oil or the car wash cause this? Thanks for any help The car wash may have caused the check engine light to come on but after driving for a while it should ...

check engine light came on after plug wire (coil) vibrated loose and started missing on one cylinder. I put wire back on and the miss went away but check engine light stayed on. I drove it another day