Emissions

gorillaguy8 · 03-31-2007, 08:26 PM

I dont have a scanner but i took a picture of the graphs. Green line is the vehicle speen, black line is the test readings, and straight black line is the maximum level. First graph is hydrocarbons, second is Carbon monoxide, and last is oxides of nitrogen. Any other info you need to know?

mrnickleye · 04-02-2007, 04:09 AM

Well, that's too blurred to see, and here they have a different printout.
Can you tell me what the max allowed is, and what yours measured, for each of the 3 catagories??

ie: HC (ppm) max 106, yours 99
CO (%) max 70, yours 0.14
NO (ppm) max 762, yours 1000

If your NOx was over the limit, there's a good chance the EGR system is the trouble. These EGR valves are usually tough, and not the cause. The passages get clogged up, and that needs checking. The EGR valve transducer goes bad more often than the valve.

Read the last 2 posts in the FAQs section, "EGR System Facts"

03-31-2007, 08:26 PM	#1
gorillaguy8 3" Exhaust Join Date: Apr 2006 Location: St. Louis Posts: 55	I dont have a scanner but i took a picture of the graphs. Green line is the vehicle speen, black line is the test readings, and straight black line is the maximum level. First graph is hydrocarbons, second is Carbon monoxide, and last is oxides of nitrogen. Any other info you need to know? Attached Thumbnails __________________ Black 87 N/A, re-built from the ground up. Last edited by gorillaguy8; 03-31-2007 at 08:37 PM.

04-02-2007, 04:09 AM	#2
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	Well, that's too blurred to see, and here they have a different printout. Can you tell me what the max allowed is, and what yours measured, for each of the 3 catagories?? ie: HC (ppm) max 106, yours 99 CO (%) max 70, yours 0.14 NO (ppm) max 762, yours 1000 If your NOx was over the limit, there's a good chance the EGR system is the trouble. These EGR valves are usually tough, and not the cause. The passages get clogged up, and that needs checking. The EGR valve transducer goes bad more often than the valve. Read the last 2 posts in the FAQs section, "EGR System Facts" __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.

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