My secondary pump is -not- kicking on. Good lead on the secondary MAF. Regarding the video I do have a different code than his 1419, I'm getting 491/492. I did remove this the other week and my filter was pretty good. I shot the sensor with a little CRC MAF spray same as he had in the video. However, perhaps there is another test I can do rather than replace and pray on the secondary MAF (test with voltmeter or ??). Looks like that part, if 100% dead, is $60-75.