General 1967-2002 F-Body Tech For general F-Body discussion that does not fit in any other forum.
For F-Body Technical/Information Discussion ONLY

Need help -- failed NJ emissions for the idle reading

Old 08-19-2013, 04:13 PM
  #1  
Registered User
Thread Starter
 
Laymaster's Avatar
 
Join Date: Apr 2001
Location: Old Bridge, NJ 08857
Posts: 658
Need help -- failed NJ emissions for the idle reading

Passed with flying colors all around except on the idle reading for HC ppm. The standard for this measure is 220 and I scored a 456. I just changed the plugs and fuel filter about a week before going for the inspection. Is it just a fluke? For reference the "high idle" standard is again 220 and I scored a 149.

Thanks in advance.
Laymaster is offline  
Old 08-19-2013, 06:02 PM
  #2  
Administrator
 
Injuneer's Avatar
 
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 70,634
Re: Need help -- failed NJ emissions for the idle reading

What were the idle test results for CO - measured and passing limit? What were the results for the high idle CO and NOx?

Initial thought would be leaking injector(s), but knowing full test results may indicate other issues.
Injuneer is offline  
Old 08-20-2013, 05:48 PM
  #3  
Registered User
Thread Starter
 
Laymaster's Avatar
 
Join Date: Apr 2001
Location: Old Bridge, NJ 08857
Posts: 658
Re: Need help -- failed NJ emissions for the idle reading

Fred,

Thanks for getting back to me. Attached below are the results from the Eatontown inspection station.

Name:  5bb65343-515e-4734-a29e-41b19c918d93.jpg
Views: 23
Size:  36.8 KB
Laymaster is offline  
Old 08-20-2013, 06:42 PM
  #4  
Administrator
 
Injuneer's Avatar
 
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 70,634
Re: Need help -- failed NJ emissions for the idle reading

I'd pull the rails up, pressure the fuel system, and look for drips.
Injuneer is offline  
Old 08-20-2013, 06:43 PM
  #5  
Registered User
Thread Starter
 
Laymaster's Avatar
 
Join Date: Apr 2001
Location: Old Bridge, NJ 08857
Posts: 658
Re: Need help -- failed NJ emissions for the idle reading

So basically pull the rails up and ignition on?
Laymaster is offline  
Old 09-07-2013, 07:08 AM
  #6  
Registered User
 
SteveC's Avatar
 
Join Date: Aug 2001
Location: Poway, CA
Posts: 368
Smile Re: Need help -- failed NJ emissions for the idle reading

Originally Posted by Injuneer
I'd pull the rails up, pressure the fuel system, and look for drips.
+1 on this.
SteveC is offline  
Old 09-11-2013, 04:45 PM
  #7  
Registered User
Thread Starter
 
Laymaster's Avatar
 
Join Date: Apr 2001
Location: Old Bridge, NJ 08857
Posts: 658
Re: Need help -- failed NJ emissions for the idle reading

Thanks for the advice. I didn't find any "drips" like I thought I would visually but I did get a little fuel on my finger when I rubbed my finger on one of the injector nozzles. I believe it is cylinder number 1 (driver side front most cylinder). Should I replace just this one or all of them? There is about 147,000 miles on the car if I remember correctly. Also should I use standard OEM injectors or any type of upgrade?
Laymaster is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dbusch22
Forced Induction
6
10-31-2016 11:09 AM
kksi
LT1 Based Engine Tech
5
03-21-2015 09:03 PM
lt1matt
LT1 Based Engine Tech
17
03-21-2015 07:35 PM
Queens94z28
LT1 Based Engine Tech
5
11-20-2014 06:03 PM
z28projects4ever
Automotive News / Industry / Future Vehicle Discussion
9
07-16-2002 07:48 PM


Thread Tools
Search this Thread
Quick Reply: Need help -- failed NJ emissions for the idle reading



All times are GMT -5. The time now is 03:50 PM.