Barely Passed CA Smog Test...HC at MAX
#21
Le Mans Master
Member Since: Oct 2007
Location: Akron Ohio
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2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
OP: How many miles on your oil? Just curious if the PCV system is inhaling raw gas fumes from the hot oil, bumping up the HC levels.
Also, I'm curious if putting in a couple gallons of E85 into the tank would add enough extra oxygen into the combustion process to reduce the HC level.
Also, I'm curious if putting in a couple gallons of E85 into the tank would add enough extra oxygen into the combustion process to reduce the HC level.
#22
Racer
Thread Starter
Welp...here I go again with this gd CA Smog check. Failed today.
Last year in February, I failed a smog check, changed the catalytic converter, then retested and passed well within margin.
Then stuck the car in storage. Started it up periodically, but mostly just sitting in storage.
Today, 350 miles and 1 year and 4 months later since the last smog check, I failed.
Im lost as to what to check. The cat only has 350 miles on it since it was changed, so seems highly improbable that its the cat.
Any ideas on what I should be checking to get this to pass?
Todays results:
Last Years Results
Last year in February, I failed a smog check, changed the catalytic converter, then retested and passed well within margin.
Then stuck the car in storage. Started it up periodically, but mostly just sitting in storage.
Today, 350 miles and 1 year and 4 months later since the last smog check, I failed.
Im lost as to what to check. The cat only has 350 miles on it since it was changed, so seems highly improbable that its the cat.
Any ideas on what I should be checking to get this to pass?
Todays results:
Last Years Results
#23
Too lean or egr non function.
#24
Frank,
Jamb it in non op and install your new set up.
Jamb it in non op and install your new set up.
#25
Racer
Thread Starter
Actually....that is about to start back up. One upside to this covid mess is its slowing me down enough to start work on that project again. You need to swing by the warehouse and check out whats going on over there.
Just starting to rebuild the LS now....not a full tear down. Just taking the heads off and inspecting to start.
Fuel lines and fuel pump next. Im going to start a thread on this shortly.
But while Im doing that, was hoping to drive this turd a bit.
Just starting to rebuild the LS now....not a full tear down. Just taking the heads off and inspecting to start.
Fuel lines and fuel pump next. Im going to start a thread on this shortly.
But while Im doing that, was hoping to drive this turd a bit.
Last edited by Zero1Niner; 06-15-2020 at 06:56 PM.
#26
Your call. I would just non op it and do the change over. If you need stuff, I have a spare EGR, and I have the numbers for the TVS switches and such. The solenoids that run the mess are unobtainium.
#28
Race Director
EGR is stuck open. pull it and clean it.
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Zero1Niner (06-15-2020)