Goin' Smoggin In Ca

[ParadiseMJ]

Hey guys,

 

Going to get the ol' boy smogged and looking for suggestions...last minute type.

 

I have a relatively new cat, new plugs, rotor, cap etc.  I fixed all my vac lines, checked the EGR function, new cap, new gas.

 

Anything I'm leaving out?

[shelbyluvv]

Get the cat HOT before you take it in. Run it down the highway with the OD off and keep the revs up for about 15 mins. Then get it to the smog shop before it cools off. They seem to pass easier with the cat hot.

[jpdriver1]

what's the vintage of your O2 sensor

 

also check for tight manifold bolts -- if it is sucking air, your NOX may fail 

 

been trying for three weeks to get my 89 to pass 

[johnj92131]

Just had my 91 smoged last Monday.  Only problem was the gas cap.  Replaced the gas cap and I passed with flying colors.  It has been the same every time I have to do the smog thing for the last 7 or 8 years.  The engine is bone stock and runs just fine on regular gas with about 250,000 miles.

[ParadiseMJ]

Well, all the sniffer tests came out fine, great actually.  Gas cap, fine. EGR, working good.  

 

I previously had a CARB approved intake on it.  I took it off to smog it since it isn't stock.  I failed the visual check because the chintzy little $2.00 heat tube and passive tin collector (Renix) on the manifold for the vacuum actuated "Thermostatic Air Filter" had also been removed.  So it failed just on that alone.  It has passed every other time just as it is.  Different tech, by the book.

 

They didn't charge me.  I called the shop and gave them the number on the aftermarket intake tube...they OK'd the tube (deleting the stock intake air box) and told me to put it on and bring it back.  Even with the stock box out and the TAF and the vac line to the airbox removed. 

 

 

[ParadiseMJ]

 Passed with the aftermarket intake, an explanation to the smog man on HOW the "Thermostatic Air Filter" works, very good emissions numbers and my plain old annoying-ness. I think they just wanted to get rid of me.