Third time was not the charm for me... Do any of you guys have any ideas or tricks to get it through DEQ and tagged?
It's a '90 4.0/AX-15, roughly 180k. Runs great and idles smoothly, but has a bunch of blowby (blowing oil out the filler plug). All the emissions harness, etc. are there and not plugged up that I can tell, but don't seal well as the oily fumes seem to have dissolved the cement holding the joints together. The O2 sensor has about 30k on it, and the cat has about 70k-80k; it's not rattling as far as I can tell.
I just gave it a tuneup (Bosch plat plugs, wires, new cap/rotor, air filter, oil change), but no noticeable change in the emissions numbers
The results were:
HC std: 220
idle: 222
2nd idle: 228
CO std: 1
idle: 3.2621
2nd idle: 3.5963
CO+CO2 std: 6
idle: 12.2
2nd idle: 12
I don't know what needs to be tweaked, as the CO numbers are way off. Any suggestions? I'm curious if there is a way to test the cat, O2 sensor, and EGR, rather than swap and hope for the best. I'm also thinking to just replace the vac harness in case thwe leaks are causing it not to run right, but $80 for some crappy tubing just seems wrong. Hoping you guys have some ideas.
It's a '90 4.0/AX-15, roughly 180k. Runs great and idles smoothly, but has a bunch of blowby (blowing oil out the filler plug). All the emissions harness, etc. are there and not plugged up that I can tell, but don't seal well as the oily fumes seem to have dissolved the cement holding the joints together. The O2 sensor has about 30k on it, and the cat has about 70k-80k; it's not rattling as far as I can tell.
I just gave it a tuneup (Bosch plat plugs, wires, new cap/rotor, air filter, oil change), but no noticeable change in the emissions numbers
The results were:
HC std: 220
idle: 222
2nd idle: 228
CO std: 1
idle: 3.2621
2nd idle: 3.5963
CO+CO2 std: 6
idle: 12.2
2nd idle: 12
I don't know what needs to be tweaked, as the CO numbers are way off. Any suggestions? I'm curious if there is a way to test the cat, O2 sensor, and EGR, rather than swap and hope for the best. I'm also thinking to just replace the vac harness in case thwe leaks are causing it not to run right, but $80 for some crappy tubing just seems wrong. Hoping you guys have some ideas.