Check emission system light came on I forgot to put the oil cap back on what do it means

Check emission system light came on I forgot to put the oil cap back on what do it means 2 Answers

About 3 weeks ago I went to start up my 2009 Honda Civic Sedan lx and lights came on and everything but wouldn't start. On the third time trying to start it none of the lights came on, so I changed the battery. I tried starting it with the new battery, all lights came on perfectly, but it wouldn't turn over. I changed the starter and the car ran fine with no problems for maybe 2 weeks. This morning I was driving down the road when the check engine light came on and the engine suddenly started to rev up uncontrollably. I was able to brake but it was very hard to do because the engine kept revving. Without my foot on the brake the car was going 30 something mph, when I braked and got below 15 I felt a hard downshift. Has anyone had these simliar problems or know what might have cause this kind of behavior? 3 Answers

About 3 weeks ago I went to start up my 2009 Honda Civic Sedan lx and lights came on and everything but wouldn't start. On the third time trying to start it none of the lights came on, so I changed...

The front defrost button light won't turn off. Anyone know what to do or what it means? 2 Answers

So I bought a 2012 Honda Civic and noticed that the light on the front defrost button wont turn off. I pressed the button to turn it off and it wont. I'm not sure what that means exactly.

2010 Civic - "Check Fuel Cap" Message keeps appearing ..what to do ? 8 Answers

Twice I've gotten the message on my gauge readout, and I've gone and removed the cap and put it back on but the message keeps coming back. Is this a fuel filter issue? If so where is the fuel filter...

1998 Honda Civic LX. Speedometer doesn't work ,,, what to do ? I changed the speed sensor, the two sensors on the catalytic converter, the alternator, the fuse box, and still the light stays on. 2 Answers

Car had electrical issues, so I changed a lot of parts. Now the car runs fine but the speedometer doesn't work and the engine light stays on. What now.