CALIFORNIA SMOG WITH DIABLO TUNER

jedquist

New Member
Mar 15, 2007
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Can I pass a Cali smog test my Diablo tune, or do i need to put it back to the stock tune? i have BBK T-body 70mm, BBK plenum, Demolet C.A.I., Flowmasters, 3.73's, BBK under drive pullies.
 
some have done it. but it really depends on what else you have done to the car. I would just put the stock tune back in and drive it for at least 150 miles before the test because the smog station will be able to tell you have re-flashed the computer recently. or you could do pre test and see if it passes. that way you will kno if your gona fail or not before the real test. are you anywhere near modesto? if so i might have a smog hookup for you.
 
no i'm in SoCal, the only thing im worried about is that the obd2 scanner will recognize the diablo and fail me. but if i put it to stock the mph and rpm wont be what they are supposed to be cause of the gears...
 
Man I am so glad that I do not have to deal with all of that smog testing.

How much do you guys have to pay to get it tested? If you fail then go back do you have to pay again?

Its around 50 bucks. The place I was taking it if you failed it would be 16 to retake it after you fixed whatever is wrong. But darkside hooked me up :nice: so i dont have to worry about it anymore.
 
One thing that will help is geting the cats SUPER hot before the test (if you still have cats). Drive the car hard and get those cats really warm then take it to a gas station type smog place. As long as they smog it while the cats are hot you will pass the sniffer test. As far as the tune goes, as long as its not too far out from stock on the timing you should be fine.
 
yea i know i get burned about it everyday, i have 2 older bros with 8 bangers, its just gas prices suck, and my insurance is crazy high, im still a teen, so i was mainly thinkin bout a complete engine swap and t5 tranny swap!