I was messing around with my intake stock intake piping and filter box, and now my "Service Engine Soon" light is on. I started the car with the Air Flow Sensor unplugged which I believe activated it. I put everything back together, and still get the light. I tried to dis-connect the battery for 60 seconds and re-connect it. That didn't work...please advice?

 

No problem here. Follow the pedal reset method or disconnect the negative battery terminal for 12 hours or so. Or disconnect the negative battery terminal, hold down the brake pedal for awhile. Make sure the MAF is plugged in properly. All should be good to go then.

 

The battery reset methid is the easiest, and it doesn't take 12 hours. The whole process takes about 12 minutes.

remove negative terminal and wait 8-9 minutes - timed
turn key to on position and hold down brake pedal for 30-45 seconds
remove key and put negative terminal back on
start car and all should be well.

Rick

 

All fixed! I actually just disconnected the negative terminal for 3 hours, reconnected it, and VWALLA! No more SEL light! Thanks for all the help guys!