will it work or are they different? my ECU is throwing code 7, but the car idles and runs fine, the light was on when i started the car, then i turned off and stared again and it went away. i then reset the ECU and started the car and it came back on. Although this time when restarted the light stayed on all the way home. Shut the car off and thought id start it again to see if it was still there but it didnt come on. Any ideas?