A: I agree! . How California's BAR-approved smog stations know you - Alt Car news In this case, several readers have written to tell us that this article was helpful to them, earning it our reader-approved status. There is a registered person in this picture. The 2021 Chevrolet Colorado is a fuel-efficient truck that is leading among its close competitors in gas mileage. Here's How Californian Car Owners Are Avoiding The Dreaded Smog Test According to the Bureau of Automotive Repair, vehicles with software not provided by the original equipment manufacturer (OEM) or approved through a California Air Resources Board (CARB) Executive Order (EO) will fail a smog check.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'tiremeetsroad_com-medrectangle-3','ezslot_4',108,'0','0'])};__ez_fad_position('div-gpt-ad-tiremeetsroad_com-medrectangle-3-0'); There are two ways your local smog machine will know your ECUs not stock: by first comparing the data stream coming out of your OBD-II system to a profile compiled through years of data collection and by verifying your cars Calibration Verification Number (CVN) on the ECU. Stage 2's shouldn't be too bad to get dialed in to pass emissions but they will not pass on the stock tune. I think its worth the money for a number of reasons. This applies to anyone trying to get a vehicle repair or hardship waivers. By Scott Parker July 19, 2021. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. From those early PlayStation days, Sean was drawn to anything with four wheels. After putting DSMLink and showing the o2 sensor was not cycling properly, this explained why I failed being a gross polluter with a lot of unburned gas. "What helped me was being told not to shut my car off before emissions test. A California car, 2000 and newer, wouldve run through an OBD-OIS test twice since 2015.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'tiremeetsroad_com-box-4','ezslot_7',109,'0','0'])};__ez_fad_position('div-gpt-ad-tiremeetsroad_com-box-4-0'); With enough data points, smog shops have known approved configurations for your vehicles make and model. Recently passed CA smog with 034 stage 1. Hondata even offers a slightly less potent C.A.R.B.-compliant version of the plug-in (CARB EO D-742-1) which, as mentioned earlier, is just fine by California officials. GM Authority. "Cold air intake". Do you own a car with a tune? They still don't need a smog check for registration in the state. Starting July 19, 2021, testing stations will begin to check whether cars are running OEM or California Air Resources Board (CARB)-approved tunes. Roughly 10,000 of these inspections result in failures due to problems other than modified software. If your car isn't, it'll fail the test. However, there are some exceptions, stipulated below from the California state website: The regular smog check test still includes a visual inspection, an inspection of tailpipe emissions, and an inspection of the on-board diagnostic system.