Fault codes won't pass smog
#11
04-10-2019 | 10:30 PM
Thread Starter
|
Three Wheeling
Joined: Aug 2009
Posts: 50
Likes: 0
Looks to me like you are failing on readiness of the monitors. You can only have one thats not ready. The 3 amigos should have no effect on passing or not. Only the SES light....if its on you will not pass. Have you cleared any codes lately or disconnected the battery? If so you have to drive it long enough under different loads to get the monitors ready. Most scan gauges can read monitor readiness.
I will keep you posted. appreciate the help.
Cheers John
#14
04-11-2019 | 05:20 AM
Banned
Joined: Mar 2019
Posts: 128
Likes: 3
Your engine will run fantastico because the O2 Sensor is tricked into thinking everything is perfect. No codes. You need front and rear. My guy had to weld it in. I had to go to the rough side of town and pay $200 in labor.
Get em before the're illegal.
Some Mary on this website might have a problem with this. Cause It's not trendy green hip and climate friendly. But it's not illegal. And if you're as sick as I am of these BS smog laws it's Miller Time .. and this Buds for you .
Last edited by DavidOHendo; 04-11-2019 at 05:22 AM.
#16
01-07-2021 | 10:39 PM
Looks to me like you are failing on readiness of the monitors. You can only have one thats not ready. The 3 amigos should have no effect on passing or not. Only the SES light....if its on you will not pass. Have you cleared any codes lately or disconnected the battery? If so you have to drive it long enough under different loads to get the monitors ready. Most scan gauges can read monitor readiness.
SES = Service engine soon? I have the 3 amigos on, previous owner allowed the battery to die. Therefore ECU was reset. I drove the truck for about 300 miles all the monitors came up except for the cat monitor. I reset the pending fault codes and did drive cycle "d" All monitors came up except for the evap monitor. My question is would a rough road fault cause the drive cycles not to complete readiness? Do I need to fix and clear that fault code? TIA
#19
01-08-2021 | 10:18 AM
Mudding
Joined: Nov 2014
Posts: 230
Likes: 53
"if they come back or you get new codes or just want to skip all the above .. drive to the dealer or indy ...get the dealer or the indy to purge those codes .. tell them not to drive it .. use AAA to flat bed tow it tow it to the damn smog station .. don't turn it on until you get there..
then ... wait .. when there are no customers .. walk up to the smog booth .. tell them you are here for the test ..
it SHOULD take a little while before those codes come back .. at least a few minutes .. the trick is to get them to scan it when the codes are out ,. so you can get your dumb smog certificate .."
In my state this will not work.
You have to drive the truck, clear of codes, until at least seven of the eight readiness checks passes. You are allowed to have one readiness check not check. If you have two or more, you will fail. Those checks require several drive cycles to reset. If you flatbed your Rover to the DMV inspection site, without driving through enough cycles to reset the readiness checks, you will be wasting a trip to the DMV.
I have been through this every two years since I bought my Disco. I just did it again over the last few weeks. Had to replace the evap purge valve to get it to reset the evap readiness check. Had to replace the coils and wires to get it to clear the misfire codes. Had to replace both cats and all four O2 sensors ( again ) in order for it to clear the the cat sensor codes, and reset the readiness check. After all the repairs were done, it took three 110 mile round trips to work to reset all eight readiness checks. Last time I did this I literally drove up and down the road that the DMV was on, with the OBD II scanner plugged in and sitting on the console. Once the eight checks cleared I pulled into the station and ran it through. Done.
Get a cheap OBD II scanner. Make sure it's one that shows the readiness checks. This is what the DMV will look at. If you have CAT, AIR and EVA, you need to get those checks to complete, or you will not pass a smog test. Here are some helpful tips to get the truck to complete the EVA check.
https://www.nyvip.org/PublicSite/OBD...-monitors.html
The AIR check requires that the secondary air system is working, and at least two cold starts have been completed. The CAT requires that all four O2 sensors are working, as well as the O2 heat test passes.
then ... wait .. when there are no customers .. walk up to the smog booth .. tell them you are here for the test ..
it SHOULD take a little while before those codes come back .. at least a few minutes .. the trick is to get them to scan it when the codes are out ,. so you can get your dumb smog certificate .."
In my state this will not work.
You have to drive the truck, clear of codes, until at least seven of the eight readiness checks passes. You are allowed to have one readiness check not check. If you have two or more, you will fail. Those checks require several drive cycles to reset. If you flatbed your Rover to the DMV inspection site, without driving through enough cycles to reset the readiness checks, you will be wasting a trip to the DMV.
I have been through this every two years since I bought my Disco. I just did it again over the last few weeks. Had to replace the evap purge valve to get it to reset the evap readiness check. Had to replace the coils and wires to get it to clear the misfire codes. Had to replace both cats and all four O2 sensors ( again ) in order for it to clear the the cat sensor codes, and reset the readiness check. After all the repairs were done, it took three 110 mile round trips to work to reset all eight readiness checks. Last time I did this I literally drove up and down the road that the DMV was on, with the OBD II scanner plugged in and sitting on the console. Once the eight checks cleared I pulled into the station and ran it through. Done.
Get a cheap OBD II scanner. Make sure it's one that shows the readiness checks. This is what the DMV will look at. If you have CAT, AIR and EVA, you need to get those checks to complete, or you will not pass a smog test. Here are some helpful tips to get the truck to complete the EVA check.
https://www.nyvip.org/PublicSite/OBD...-monitors.html
The AIR check requires that the secondary air system is working, and at least two cold starts have been completed. The CAT requires that all four O2 sensors are working, as well as the O2 heat test passes.
Last edited by gulfstream69xr7; 01-08-2021 at 10:23 AM.
#20
01-09-2021 | 11:35 AM
"if they come back or you get new codes or just want to skip all the above .. drive to the dealer or indy ...get the dealer or the indy to purge those codes .. tell them not to drive it .. use AAA to flat bed tow it tow it to the damn smog station .. don't turn it on until you get there..
then ... wait .. when there are no customers .. walk up to the smog booth .. tell them you are here for the test ..
it SHOULD take a little while before those codes come back .. at least a few minutes .. the trick is to get them to scan it when the codes are out ,. so you can get your dumb smog certificate .."
In my state this will not work.
You have to drive the truck, clear of codes, until at least seven of the eight readiness checks passes. You are allowed to have one readiness check not check. If you have two or more, you will fail. Those checks require several drive cycles to reset. If you flatbed your Rover to the DMV inspection site, without driving through enough cycles to reset the readiness checks, you will be wasting a trip to the DMV.
I have been through this every two years since I bought my Disco. I just did it again over the last few weeks. Had to replace the evap purge valve to get it to reset the evap readiness check. Had to replace the coils and wires to get it to clear the misfire codes. Had to replace both cats and all four O2 sensors ( again ) in order for it to clear the the cat sensor codes, and reset the readiness check. After all the repairs were done, it took three 110 mile round trips to work to reset all eight readiness checks. Last time I did this I literally drove up and down the road that the DMV was on, with the OBD II scanner plugged in and sitting on the console. Once the eight checks cleared I pulled into the station and ran it through. Done.
Get a cheap OBD II scanner. Make sure it's one that shows the readiness checks. This is what the DMV will look at. If you have CAT, AIR and EVA, you need to get those checks to complete, or you will not pass a smog test. Here are some helpful tips to get the truck to complete the EVA check.
https://www.nyvip.org/PublicSite/OBD...-monitors.html
The AIR check requires that the secondary air system is working, and at least two cold starts have been completed. The CAT requires that all four O2 sensors are working, as well as the O2 heat test passes.
then ... wait .. when there are no customers .. walk up to the smog booth .. tell them you are here for the test ..
it SHOULD take a little while before those codes come back .. at least a few minutes .. the trick is to get them to scan it when the codes are out ,. so you can get your dumb smog certificate .."
In my state this will not work.
You have to drive the truck, clear of codes, until at least seven of the eight readiness checks passes. You are allowed to have one readiness check not check. If you have two or more, you will fail. Those checks require several drive cycles to reset. If you flatbed your Rover to the DMV inspection site, without driving through enough cycles to reset the readiness checks, you will be wasting a trip to the DMV.
I have been through this every two years since I bought my Disco. I just did it again over the last few weeks. Had to replace the evap purge valve to get it to reset the evap readiness check. Had to replace the coils and wires to get it to clear the misfire codes. Had to replace both cats and all four O2 sensors ( again ) in order for it to clear the the cat sensor codes, and reset the readiness check. After all the repairs were done, it took three 110 mile round trips to work to reset all eight readiness checks. Last time I did this I literally drove up and down the road that the DMV was on, with the OBD II scanner plugged in and sitting on the console. Once the eight checks cleared I pulled into the station and ran it through. Done.
Get a cheap OBD II scanner. Make sure it's one that shows the readiness checks. This is what the DMV will look at. If you have CAT, AIR and EVA, you need to get those checks to complete, or you will not pass a smog test. Here are some helpful tips to get the truck to complete the EVA check.
https://www.nyvip.org/PublicSite/OBD...-monitors.html
The AIR check requires that the secondary air system is working, and at least two cold starts have been completed. The CAT requires that all four O2 sensors are working, as well as the O2 heat test passes.
If I were to try your idea and reset any pending codes it automatically resets the ECU and I'm back at square one and even if I flat towed it to the monitoring station I wouldn't pass.
I'm hopeful that when I do the next drive cycle that the EVAP will come up. Honestly I'm all for clean air as I have asthma and live in Los Angeles but if this ridiculousness can't be taken care of I am going to get it passed by any means.