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Failed Smog high HC's(Again) #1368006 08/23/05 04:39 PM
Joined: Sep 2004 Posts: 157 Pomona, CA G GoldenTour OP CEG\'er
OP GoldenTour CEG\'er G Joined: Sep 2004 Posts: 157 Pomona, CA	I thought i had this firgured out but i failed smog again. the first time i failed smog, i went home and found the PCV valve just hanging there it wasnt plugged into the large pipe directly under it. so i figured i had umetered air going into the engine, therefore causing the O2 sensors to throw more fuel in because too much air was being seen. OK so i fixed that plus i put a worm clamp arount it, to try to prevent it from happening again. I also replaced the following: Both upper O2 sensors spark plugs and wires UIM/LIM cleaning and gaskets fuel filter replaced i inspected the tubing and did not find any cracks what am i missing? can someone help me diagnose this before i buy precats and main cat? by the way, I do have gutted precats but retained the main cat. heres a pic of the data from the smog test. Notice how my Hc levels kicked up on the 2nd test. and this causes the rest to come up. ~Crystian 2000 Se sport 2001 Lightning(Sorry!your mom cant come with us)

Re: Failed Smog high HC's(Again) #1368007 08/23/05 04:52 PM
Joined: Jun 2005 Posts: 5,345 Virginia, USA T Tony2005 Addicted CEG\'er
Tony2005 Addicted CEG\'er T Joined: Jun 2005 Posts: 5,345 Virginia, USA	Originally posted by GoldenTour: what am i missing? can someone help me diagnose this before i buy precats and main cat? by the way, I do have gutted precats but retained the main cat. heres a pic of the data from the smog test. Notice how my Hc levels kicked up on the 2nd test. and this causes the rest to come up. It failed because of high hydrocarbons. Was the catalytic converter all heated up and ready when you did the test? It might be good to get a Scanner to make sure it was ready before going for the test. In addition, maybe having just the main cat isn't good enough for CA emmissions. "Always do the cheap and easy ones first." 1996 V6 ATX 96K miles

Re: Failed Smog high HC's(Again) #1368008 08/23/05 04:58 PM
Joined: Sep 2004 Posts: 157 Pomona, CA G GoldenTour OP CEG\'er
OP GoldenTour CEG\'er G Joined: Sep 2004 Posts: 157 Pomona, CA	hi tony, it seems you're all over the place on the boards. I had just driven about 80 miles coming from san diego to LA so yeah it should have been hot enough. No codes, i have just a cheap code reader and i havent seen a CEL in 1 yr, before i gutted the cats and put the MIL eliminator circuits. From what i understand high HC's means unburned fuel, but whe i replaced the spark plugs, they came out normal( 1 week ago) I have read that others here in cali PASS with just the main cat. so im just a little confused why i have unburned fuel. ~Crystian 2000 Se sport 2001 Lightning(Sorry!your mom cant come with us)

Re: Failed Smog high HC's(Again) #1368009 08/23/05 05:12 PM
Joined: Jun 2005 Posts: 5,345 Virginia, USA T Tony2005 Addicted CEG\'er
Tony2005 Addicted CEG\'er T Joined: Jun 2005 Posts: 5,345 Virginia, USA	Originally posted by GoldenTour: From what i understand high HC's means unburned fuel, but whe i replaced the spark plugs, they came out normal( 1 week ago) I have read that others here in cali PASS with just the main cat. so im just a little confused why i have unburned fuel. 1) Why did it not pass when the hydrocarbon levels came out normal (or within acceptable limits)? 2) Your main cat might be on its way out. Edit. The scanner was to make sure that the car was in a OBD Ready mode before sending it for inspection. Not whether there was a CEL. The CE light should tell you that there was a code stored by the PCM. Last edited by Tony2005; 08/23/05 05:29 PM. "Always do the cheap and easy ones first." 1996 V6 ATX 96K miles

Re: Failed Smog high HC's(Again) #1368010 08/23/05 05:58 PM
Joined: Sep 2004 Posts: 157 Pomona, CA G GoldenTour OP CEG\'er
OP GoldenTour CEG\'er G Joined: Sep 2004 Posts: 157 Pomona, CA	1. the hc's have been the problem from the start. 2. i forgot to mention that i replaced the main cat after the first failure. the shop put some magnaflow cat in there, maybe ill try fords, but im not sure cats play a role in HC's ~Crystian 2000 Se sport 2001 Lightning(Sorry!your mom cant come with us)

Re: Failed Smog high HC's(Again) #1368011 08/23/05 06:10 PM
Joined: Jun 2005 Posts: 5,345 Virginia, USA T Tony2005 Addicted CEG\'er
Tony2005 Addicted CEG\'er T Joined: Jun 2005 Posts: 5,345 Virginia, USA	Originally posted by GoldenTour: but im not sure cats play a role in HC's Yes, they do. Read this article. http://auto.howstuffworks.com/catalytic-converter2.htm "Always do the cheap and easy ones first." 1996 V6 ATX 96K miles

Re: Failed Smog high HC's(Again) #1368012 08/24/05 05:04 PM
Joined: Sep 2004 Posts: 157 Pomona, CA G GoldenTour OP CEG\'er
OP GoldenTour CEG\'er G Joined: Sep 2004 Posts: 157 Pomona, CA	So i guess i should buy the precats. any other ideas? i guess ill have some gutted cats and mils for sale real soon ~Crystian 2000 Se sport 2001 Lightning(Sorry!your mom cant come with us)

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