et888

So the thing I posted previously above that I found at http://www.smogtips.com/smog-question/2569/Secondary-air-monitor-will-not-run-2001-Chevy-Silverado-5-3L did not work for me, but this past Saturday I had the check engine light come on which in this case that's a good thing because it means it finally ran and completed the monitor. Checked with the code reader and like has been the case for me for maybe 8-10 years p1416 secondary air inj 2nd bank. I cleared the codes and have been driving around a bit. If things go as they have in the past it will be ready to test pretty quick. I didn't do anything but drive ..........So I have no answers, Sorry

Smogtips.com http://www.smogtips.com/smog-question/2569/Secondary-air-monitor-will-not-run-2001-Chevy-Silverado-5-3L

I'm having this same issue 2000 Silverado 5.3l also in Cali.............I've had engine light activated countless times over the 16 years with this truck always the same code P1416 changed 2ndary A.I valves never made a difference, changed upstream O2's ............every 2 years at smog time it always manages to give me the light when about to test so I try to plan ahead ..........always seems to be a hassle but I'd clear the codes and drive a bit wouldn't take too long to do it's thing (the drive cycle) and I'd be good to go. Not the case this time. Although I thought it was................. this year however I have the wonderful code pending P1416 2ndary A.I not ready----- phenomena, what a gift. Just learning about it, hence my being here and writing this. Paid Reg but of course have no valid tags which has made the 250 plus miles already driven more nerve racking then I care for, with the seemingly rabid law enforcement in my slice of Bay Area Heaven and more miles then it ever required previously. After reserching the topic this morning and getting copies of the different system cycle requirements I/M's most importantly for me(I hope) what it takes to complete Secondary Air Injection monitor I noticed something I have failed yet to do or incorporate in my driving. I'm going to go do it now in accordance with I/M and prey it works !!!!! That missing piece is the air conditioning: IDLE TIME: Run engine (do not drive) for 2 1/2 minutes with the air conditioner on and rear defroster on. During this period the ECU will be running the Oxygen Sensor Heater self-test, Air Injection System Passive Air test, EVAP Purge "No Flow" test, Misfire Detection. ACCELERATE: Turn off the air conditioner and rear defroster and begin driving your Silverado. As soon as possible apply half throttle until 55mph is reached. The ECU will now run self-tests on the Misfire Detection, Fuel Trim, and EVAP Purge Flow. THIS IS NOT THE ENTIRE PROCESS JUST THE PART CONTAINING A/C Have you guys already tried this ???????????? I'm off to do so now and will report back results. The full procedure is here: http://www.smogtips.com/smog-question/2569/Secondary-air-monitor-will-not-run-2001-Chevy-Silverado-5-3L Hope this F*#K!*G does the trick ............................................To Be Continued