Diesel Smog Check in Carlsbad

⛽ DIESEL

Diesel vehicles 1998+ up to 14,500 GVWR. DPF + DEF system aware. Ford Power Stroke, Cummins, Duramax — we know the regen cycle.

Specialized diesel smog check performed at Carlsbad STAR Smog Check, our Carlsbad location.

*Regenerated 2026-05-25 from GBP-verified canonical data.*

Frequently asked questions

Yes 1998 model year and newer. Under 14000 lbs gvwr Biennial inspection required

Yes visual inspection catches it. Dpf removal is illegal in california Must restore stock dpf to pass

Yes if it triggers the OBD system into 'not ready' or active fault state. DEF dosing issue is visible in OBD logs limp mode = smog fail

State-required emissions inspection. Checks tailpipe and obd systems Biennial for 8-plus year vehicles

Typical range $30-$90. Star slightly more 8.25 certificate fee separate

Address

2509 Palomar Airport Rd Suite 115
Carlsbad, CA 92011

Phone

Hours

Mon-Fri 8 AM – 6 PM, Sat 8 AM – 4 PM

All vehicle types serviced at Carlsbad STAR Smog.