Failed Emissions
Thread Starter
1st Gear Member
Joined: Jul 2008
Posts: 96
From: South FL
Failed Emissions
This past week I took the mustang through emissions and it failed bad.
The results were:
| HC(PPM) | CO(%) | NOx (PPM)
Limit: |60 | .32 | 700
Emissions:| 5516 | .45 | 417
Results: | Fail | Fail | Pass
The mechanic said that it was dumping pure fuel, which would probably explain why the cats were getting red. What should I check to try and fix this? I was thinking compressing testing and redoing the timing. I might just unregister the thing and wait till spring and swap in a 351. I got like 25 more days to make a decision on what to do but the thing is currently covered under a foot of snow.
The results were:
| HC(PPM) | CO(%) | NOx (PPM)
Limit: |60 | .32 | 700
Emissions:| 5516 | .45 | 417
Results: | Fail | Fail | Pass
The mechanic said that it was dumping pure fuel, which would probably explain why the cats were getting red. What should I check to try and fix this? I was thinking compressing testing and redoing the timing. I might just unregister the thing and wait till spring and swap in a 351. I got like 25 more days to make a decision on what to do but the thing is currently covered under a foot of snow.
D.R. THE PATHETIC DORK
Joined: Jun 2007
Posts: 30,871
From: West Virginia
check the fuel pressure and if it is dumping fuel in and getting cats red, you may have secondary issues now such as catalyst melt down and bad o/2's, run a koer test and see if any codes exist and when prob is solved make sure oil is changed
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