02-01-2006, 01:33 AM
|
#12 |
|
1000whp postwhore
Join Date: Jun 2005
Location: Mojave Desert, Calif.
Posts: 1,705
 |
High NOx is caused by the EGR system not working. A bad valve, modulator (or both), or plugged passages (or all of the above).
Mine was the passages. The way its set up, and if they've never been cleaned out, I'd say that it a very likely cause. See my earlier post. If you are pretty mechanically inclined, you'll see how to clean them out as you remove the valve, and the little cover on top of the intake manifold. Use a vacuum cleaner and a coat hanger/screwdriver to scrape it out.
__________________
Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08. |
|
|
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| code 52 knock sensor can't pass emissions | hotrod705 | Non-Generation Specific Questions | 12 | 08-18-2009 07:44 AM |
| emissions FYI | ddmcse | MKIII Supra | 0 | 02-01-2008 12:34 PM |
| Went through Emissions today.... | IHateHacks | MKIII Supra | 32 | 07-03-2007 07:31 PM |
| Emissions | drmmr15 | MKIII Supra | 1 | 01-19-2007 04:09 PM |
| Emissions? | Luvs2slide | MKIII Supra | 3 | 06-03-2006 11:55 AM |
Threaded Mode