My bi annual torture ritual is up this year. 2018 I had the whole exhaust redone with new cats and passed with flying colors (and the vehicle is much quieter). I would normally go balls deep into researching this, but I've only had time to read a few threads.
Results of my test
I have 4 codes
P0125 - something to do with o2 sensor
P0135 - something to do with o2 sensor
P0325 - knock sensor
P0330 - knock sensor
I think I have an electrical issue somewhere, but I don't think any of those codes are causing my NOX problem? Or are the O2 sensors tied into the EGR system? I thought it was just a temp sensor which shut off the EGR when it wasn't cold or wasn't hot....
I watched snake eaters video and I put -5 psi vac on passenger side and the engine stumbles, but I can't get it to die if I pinch off the hose on the driver side with vacuum on the passenger side. I then went full on dude "I got this mode" trying to figure out what this meant and pulled the throttle out and EGR valve out. I assumed the port was clogged, but I cleaned that out 4 years ago and it is actually in really good shape.
Does the fact that I can't get the vehicle to die with vac applied and pinching the driver side mean my EGR valve is bad? My modulator is like 6 years old (maybe 50,000 miles on it), new toyota part. Any thoughts?
Results of my test
Reading | Limit | |
HC | 0.2498 | 1.2000 |
CO | 0.1685 | 15.000 |
NOX | 10.6960 | 3.5000 |
I have 4 codes
P0125 - something to do with o2 sensor
P0135 - something to do with o2 sensor
P0325 - knock sensor
P0330 - knock sensor
I think I have an electrical issue somewhere, but I don't think any of those codes are causing my NOX problem? Or are the O2 sensors tied into the EGR system? I thought it was just a temp sensor which shut off the EGR when it wasn't cold or wasn't hot....
I watched snake eaters video and I put -5 psi vac on passenger side and the engine stumbles, but I can't get it to die if I pinch off the hose on the driver side with vacuum on the passenger side. I then went full on dude "I got this mode" trying to figure out what this meant and pulled the throttle out and EGR valve out. I assumed the port was clogged, but I cleaned that out 4 years ago and it is actually in really good shape.
Does the fact that I can't get the vehicle to die with vac applied and pinching the driver side mean my EGR valve is bad? My modulator is like 6 years old (maybe 50,000 miles on it), new toyota part. Any thoughts?