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New Member ! Questions about 1992 Honda Accord

  #1  
Old 12-07-2013, 05:20 PM
Thread Starter
Join Date: Dec 2013
Location: Rancho Cordova, Ca
Posts: 1
Default New Member ! Questions about 1992 Honda Accord

So I am writing in the forum because I know absolutely nothing about cars and I do not want to take my car to a shop and be f***d over because of that . I have a 1992 Honda Accord Lx that will not pass smog because of my NO & CO emissions . At first all 3 emissions would not pass , but I had gotten a tune up and it fixed the HC .

The readings are :

PCV : PASS
Catalytic Converter : PASS
Visual EGR : PASS
Fuel Injection : PASS
Vacuum Line Connections : PASS
Fuel Cap Functional : PASS
Fuel Evap Test : PASS

Thermostatic Air Cleaner : N/A
Air Injection System : N/a
Ignition Spark Controls : PASS
02 sensors and connectors : PASS
Functional EGR : N/A
Fill Pipe Restrictor : N/A

Fuel Evaporative Controls : PASS
Fuel Tank Cap Visual : PASS
Carburetor : N/A
Wiring of Other Sensors or Switches : PASS
Ignition Timing : PASS 15BTDC
Liquid fuel Leaks : PASS

HC at 15 mph at 25 mph
MAX : 81 91
AVE: 27 21
MEAS : 56 53

CO at 15 mph at 25 mph
MAX : 0.74 0.62
AVE : 0.16 0.11
MEAS : 1.50 1.48

NO at 15 mph at 25 mph
MAX : 584 511
AVE : 270 207
MEAS : 621 835



If it is something easily fixable , please let me know !
 
  #2  
Old 12-07-2013, 05:36 PM
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Join Date: Oct 2010
Location: United States
Posts: 6,608
Default

Welcome to Honda Accord Forums. I moved your thread to get you more responses.

This link has some possible causes for high emission readings:
Failed Smog: What causes high emissions, HC,CO,NO | Just Smogs
 
  #3  
Old 12-07-2013, 06:10 PM
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Join Date: Sep 2006
Location: Houston, TX
Posts: 13,050
Default

The NO emissions problems can be caused by clogged EGR ports. It is a common problem on accords of your vintage. The common diy thread on top of the gen tech help forum has a link on how to clean the ports.

Your setup has the plugs that need to be removed by using a small slide hammer.
 
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