11/20/2023 0 Comments 2001 silverado secondary air monitor![]() That said, I may reach out to AA to confirm - it wouldn't hurt. I've complete every drive cycle I can find numerous times, including the generic GM drive. The truck is not throwing any codes and there are no drivability issues. The only monitor that has not completed is the secondary air injection. I need to smog test my truck but in Caliornia all monitors must be ready to pass. I'm 99% sure that it has not disabled the secondary air OBD flag because 1.) The flag shows up as "supported" when I scan for codes, but not "ready" and 2.) I'm 99% sure the flag was "ready" for 6 years prior to replacing the battery and clearing the DTCs (I would scan often because I had CEL due to the prior exhaust setup and wanted to make sure I had no other codes). (RESOLVED - Click To View) Guys, I need some help with my 2001 5.3l Silverado. This fuse is typically under the hood of the vehicle. If frozen water does freeze up the air pump itself, it may blow the fuse to it. This moisture can freeze in the winter time. When it does, it allows moisture into the pump. I don't know much about it as the previous owner had it installed, but it is an Active Autowerke tune. The most common cause of P0410 is going to be the one way check valve failing. sensor is just reading air, you might get an implausible O2. The step after that is to replace the primary o2 sensors. What happens if I remove the catalytic converter and the 02 sensors from my 98 Chevy Silverado. I went ahead and ordered the check valve just in case that thing is not getting fully open, so replacing that valve will be the next step in trying to get this resolved. I didn't feel any air escaping when the pump was on. I have checked the plastic hose - it is in great shape. it gets really brittle with age and you might have a crack in it somewhere that you cant see.ĭo you have a tune on your car is the DME software stock? You might want to check the plastic hose on the pump. I don't think those codes are related to the secondary air. My registration is due tomorrow (I paid it but I need to smog sometime soon here) - if I get desperate I’m going to buy new o2 sensors (based on some google results) and the check valve, but I really don’t want to waste the time or money for no reason.Ĭhances are you already know this, but there is a set "drive cycle" to bring the OBD2 into ready or complete mode. But that said, if I had a problem, I’d at least throw a pending code right? Does anyone know how to get the damn readiness set? Any insight is appreciated. Mine only pumps about 10-15 seconds which seems short to me. I don’t feel any pulses from the check valve (indicating it is ok).Ĭan anyone confirm for me how long their Z4M secondary air pump runs upon cold start? You can simply touch it and feel it vibrate - when it stops pumping, you’ll feel the difference. Cold start - secondary air pump is blowing tons of air thru the hose. I removed the hose off the check valve on the cylinder head. Prior to the work above, I had both secondary o2 sensor codes (due to dkf setup) but I’m 99% sure all monitors were ready state. All monitors are in ready state except the secondary air system. I have put on approx 340 miles since all of that. I replaced my battery, alternator, both belts, air box back to stock, and swapped dkf section 1 to euro section 1.
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