Failed Emissions
Thread Starter
Racer
Joined: Jul 2001
Posts: 429
Likes: 0
From: Norfolk Va VA
Failed Emissions
I know this is for C4's but maybe you all have some ideas.. My ride failed emissions. the results were...
HC ppm 278 @ 15 MPH 242 @ 25 MPH----FAILED
CO% 2.41 @ 15 MPH 2.31 @ 25 MPH-----FAILED
NO ppm 281 @ 15 Mph 319 @ 25 MPH----PASSED
I dont have a lot of time for trouble shooting and would like information on the most likely problem... Just so I have a good place to start when I get the time...
1982 350 Crossfire, 100% stock, all original emission equipment
Thanks for all the help....
RJ
HC ppm 278 @ 15 MPH 242 @ 25 MPH----FAILED
CO% 2.41 @ 15 MPH 2.31 @ 25 MPH-----FAILED
NO ppm 281 @ 15 Mph 319 @ 25 MPH----PASSED
I dont have a lot of time for trouble shooting and would like information on the most likely problem... Just so I have a good place to start when I get the time...
1982 350 Crossfire, 100% stock, all original emission equipment
Thanks for all the help....
RJ
Le Mans Master
Joined: Dec 1999
Posts: 8,540
Likes: 1
From: And on the fifth day, subpoenas were served to Obama senior staff
Re: Failed Emissions (rjs82vette)
Don't know about the crossfire, but you are running way rich! Make sure O2 sensor is working and the ECM is going into closed loop. Make sure air cleaner not completely clogged up. Make sure fuel pressure is not way too high.
Hope some crossfire folks can get in here!
Hope some crossfire folks can get in here!
Melting Slicks
Joined: Nov 2000
Posts: 3,388
Likes: 1
From: X
Re: Failed Emissions (rjs82vette)
You may want to change that fuel filter also. Check that the EGR Valve is working properly. When was the last time you tuned it up and changed the wires, cap, rotor, and coil? Unplug the two injectors and crank the car over, you should see no fuel being delivered. If you do you have leaky injectors that need attention.
Thread Starter
Racer
Joined: Jul 2001
Posts: 429
Likes: 0
From: Norfolk Va VA
Re: Failed Emissions (JonM)
I found out what was wrong.... The AIR Diverter Valves are bad, and all three Check Valves were bad... The Check valves I can find but the Diverter valves have not been made since 92....
Thanks for all your help...
Thanks for all your help...
