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18:03:39 - 11/14/2024
V8 Dakotas
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proworkz
Dodge Dakota
JOIN HERE
3/03/2006
01:37:34
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 Subject: smog test
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Message:
I am writing this for my father. He has a 97 Dakota with the V8. He had a smog check on Monday in California. The truck passed all test but one. He failed the 15 mph test. It said his HC (PPM) is bad. And also his NO (PPM). Any suggestions to what parts the HC and NO is?? Thanks.....
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modain
GenIII
3/03/2006
14:01:40
|  RE: smog test
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Message:
Help us out here...
How many miles on the engine? When was the last tuneup? Does it have any mechanincal problems: burning oil, etc.
Excessive HC (hydrocarbons) emissions indicate incomplete combustion, most likely a tuneup would address that.
Excessive NOX (nitrous oxides) emissions point to a problem with the catalytic converter in most cases.
Check this thread for a little discussion similar to yours.
SOmeone sent me a link that was real thorough about explaining the causes and effects of issues with emissions levels. I'll look for the link and post it (if I can find it).
What's your left foot doing?
=========================================
2002 Graphite QC SLT Plus, 4.7L, NV3500, Superchips 3715, 3.92 LSD, loads o'fun...
2001 Patriot Blue Durango SLT, 4.7L, 45RFE, Superchips 3715, 3.55 Open (for now)
1999 Forest Green Dakota RC Sport, 2.5L, NV1500, 3.55 Open
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modain
GenIII
3/03/2006
14:21:51
|  RE: smog test
IP: Logged
Message:
Found it!
What's your left foot doing?
=========================================
2002 Graphite QC SLT Plus, 4.7L, NV3500, Superchips 3715, 3.92 LSD, loads o'fun...
2001 Patriot Blue Durango SLT, 4.7L, 45RFE, Superchips 3715, 3.55 Open (for now)
1999 Forest Green Dakota RC Sport, 2.5L, NV1500, 3.55 Open
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