The car started just fine today, but after my first stop I turned the car on and the cel was on for about 3 seconds before going away. This occured again at the second, and third stop, but when I went to turn the car on after the third stop the car started, and then stalled. I turned the car off, and then on again, and I had no problem getting back home.<p>I checked the codes and out of socket 2 I was getting the 1-2-1 code. I looked up the numbers, and it says AMM sensor signal absent or faulty. I took apart the air filter housing, and found that the hot air box was indeed closed. <p>I should also state that there no are codes from socket 6(ignition)<p> Is it possible that the AMM would cause my relatively high numbers when I went to smog the car a few weeks back-especially with the NOX? Thanks in advance!