Stupid Emissions

[treepete]

I just got back from my 3rd trip to the emissions place. Rejected again. So I got a fail, and 2 rejected so far.


Monitors not ready again... Catalyst, evap, and heated o2...at least I got the EGR monitor off the list..
on the failed test I scored both banks P420 and P430. MIL on and


So before I dump any cash into this situation, any last things I can try? I don't want to get 4 new o2 sensors and a new cat to pass this test.
any other ideas?

 

[DallasTahoe]

Chang your oil to full synthetic, fill up with Super unleaded and then use a good octane/injection cleaner, clean plugs, rotor, check you wires, that's the only thing I can think of that will help, and a new air filter


Sent from my iPhone using Tapatalk

 

[treepete]

Ok thanks. I have synth, but Ill fill with the great gas (since its cheap) and a fuel additive clean the wires and air cleaner, thanks again.

 

[DallasTahoe]

Sure no problem let me know how it goes!


Sent from my iPhone using Tapatalk

 

[SunlitComet]

actually get it on a scanner that can show the sensor waveforms. post a pic or video of them here for analysis.

 

[SunlitComet]

you may actually have bad cats which will fail a lot of monitors as most others can't self test if the pcm see's bad cats.

 

[treepete]

Oh the cats are dead, there's no doubt there.

I was able to get the heated 02 to drop off the list and here in WI you can skate by with 2 unset monitors, but no more.
With the engine cold, I started the truck, put on the electric defrost, a/c on blast and put it in drive (with foot on brake, not moving) for 300 seconds or more. That reset the Heated O2 and I passed later in the day with only 2 failed monitors, and no MIL. So yeah. Fooled you, DMV computer.

Thanks for all your input, everyone.

 

[SunlitComet]

actually not. some states allow you to have two monitors incomplete. some allow only one or none.

 

[DallasTahoe]

So now I'm having issues getting mine inspected, already been to the inspection place 5 times the first four times because it said O2 sens not ready and egr says not ready, they said maybe because it hasn't been driven much since disconnecting the battery. So I drove it around on the freeway and the streets and was able to drop the EGR off the list, now it's just the O2 that's not ready. Do I just need to drive it some more or do I need to go more in depth on it? Really tired of spending money on her


Sent from my iPhone using Tapatalk

 

[SunlitComet]

follow this link and see what the results are. http://www.obdii.com/drivecycle.html