Can't seem to pass my smog - Third Generation F-Body Message Boards

Hooyah · 10-11-2009, 01:55 AM

I have recently taken out the egr and cleaned it, and made sure the part is still functional. Well so far everything works fine but i have not passed my smog what other methods should i consider looking into in order to pass? 89 iroc/ california

jv9999 · 10-11-2009, 09:54 AM

Quote:

Originally Posted by Hooyah

I have recently taken out the egr and cleaned it, and made sure the part is still functional. Well so far everything works fine but i have not passed my smog what other methods should i consider looking into in order to pass? 89 iroc/ california

What are the numbers? How old is the O2 sensor and catalytic converter?
Does it run well?

Hooyah · 10-12-2009, 03:37 AM

Runs great but the smog went bad, the only thing that did not pass was the No it should be at 772 but mine was at 1667? I haven't looked at the o2 sensor, dont even know where to search but i will find out soon enough. Any other input would be greatly appreciated. Ohh by the way I think the cat is four years old.

jv9999 · 10-12-2009, 10:22 AM

Quote:

Originally Posted by Hooyah

Runs great but the smog went bad, the only thing that did not pass was the No it should be at 772 but mine was at 1667? I haven't looked at the o2 sensor, dont even know where to search but i will find out soon enough. Any other input would be greatly appreciated. Ohh by the way I think the cat is four years old.

High NoX points to the EGR. It may be not opening or the ports are clogged with carbon.

Hooyah · 10-12-2009, 07:11 PM

I tested the EGR and it was ok. But ill take a look at it again.

Mr Froman · 10-12-2009, 07:26 PM

You can get a vacuum tester for the EGR, also do you have any upgrades/mods?

Hooyah · 10-13-2009, 04:04 AM

No extra mods, still hunting down the problem any advice?