This is topic Can someone interpret my smog #'s in forum General Talk at Northern California Ford Owners  .


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Posted by adower (Member # 5955) on :
 
Here are my #'s

15mph- 13.4 %co2 1.7 %O2 HC-max-85 Measured-85 CO%- max-.5 meas-.01

25mph-13.5 %co2 1.6 %O2 HC-max-50 measured-50 CO%-max.47 measured.01

What does all this stuff mean?
 
Posted by Curt (Member # 6254) on :
 
High NO - high combustion temps - retard timing, check EGR for operation.
High CO - EGR isn't working - fix it.
High HC - fuel mixture too rich - check O2 sensors, smog pump, and cats. Clean MAF element.
 
Posted by Luke87GT (Member # 21) on :
 
the man pretty much hit the nail on the head
 
Posted by adower (Member # 5955) on :
 
quote:
Originally posted by Curt:
High NO - high combustion temps - retard timing, check EGR for operation.
High CO - EGR isn't working - fix it.
High HC - fuel mixture too rich - check O2 sensors, smog pump, and cats. Clean MAF element.
So I need to check my fuel mixture, O2 sensors, smog pump, and cats. Clean MAF element. Thank you for the help bud

[ July 13, 2008, 06:39 PM: Message edited by: adower ]
 
Posted by 2stangs69-91 (Member # 1951) on :
 
? I thought the CO measured .01 on both tests.
HC looks a little high did your car fail or pass?
 
Posted by adower (Member # 5955) on :
 
quote:
Originally posted by 2stangs69-91:
? I thought the CO measured .01 on both tests.
HC looks a little high did your car fail or pass?
My car barely passed. I measured the maximum amount for HC. The Co's did measure .01 but that is way way less than the maximum acceptable limit of .5 or whatever it is.

[ July 13, 2008, 07:37 PM: Message edited by: adower ]
 
Posted by 2stangs69-91 (Member # 1951) on :
 
I thought it passed buy looking at the numbers. If you had any real problems you would have failed.
 
Posted by adower (Member # 5955) on :
 
quote:
Originally posted by 2stangs69-91:
I thought it passed buy looking at the numbers. If you had any real problems you would have failed.
Yah it passed but just barely. One more unit of HC and I would have failed. I am guessing my car is running rich so I will do the cheap stuff first. Check timing, clean Maf. If that doesnt help ill check into the 02s, cats, etc.
 




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