Quote:
Originally Posted by shade
What does the visual check comprise of? I'm practically asking for the whole procedure. I might just do what HyperTek said earlier.
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heres how most smog techs run the visual. they pull the car in, pop the hood, and read the vehicle emissions control information sticker on the underside of the hood. (if you dont have one, we have a manual that tells us the timing specs, emissions components, etc on every car. we're just too lazy to look at it.) theyll jot down the timing spec, engine size, and emissions components they'll look for on their notepad or whatever, along with the mileage, etc. then your car gets put on the dyno. after the dyno run, the computer asks us to inspect (if applicable) the air injection. so pre-94 240's better have the pulse air shit hooked up. then, we look at the pcv, ignition controls, oxygen sensors, fuel rail/injectors, egr valve, vacuum lines, wiring, look for smoke coming off the engine or out of the tail pipe (new test will fail you for visual smoke), liquid fuel leaks, etc. then it asks if the check engine light is on. 95 and older cars will only fail if the mil is on and the smog tech enters that it is on. 96 and newer fail that test automatically, thanks to obd2. then it asks to check idle speed, and timing.
however, alotta smog techs are lazy as fuck, or if the smog joint is busy, they will not even bother to give the engine a second glance and will just pass everything on the visual.
but generally, you'll have Mr. 'merican performance chevy 350 master, who generally doesnt know what and SR looks like. and if he doesnt bother looking at the engine because "its a goddamn piece of shit rice burner," and "all these 4 bangers are the same"