DIESEL

Diesel Smog Check in San Diego

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

📞 Call (619) 228-9146

About Diesel Smog Check at San Diego STAR Smog Check

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

Visit us for diesel smog check

  • Address: 2484 F St Suite A, San Diego, CA 92102
  • Phone: (619) 228-9146
  • Website: https://www.smogtestinsandiego.com/
  • Hours: Mon-Fri 8 AM – 6 PM · Sat 8 AM – 4 PM

What we do

  • California-required smog inspection
  • OBD-II readiness verification
  • Same-day electronic DMV certificate filing
  • Walk-ins welcome (no appointment needed)
  • Bilingual English / Spanish service

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

Frequently asked questions

Do diesel trucks need smog check in California?

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

Will a DPF delete fail my diesel smog?

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

Will a DEF problem fail smog?

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

What is a smog check?

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

How much does a smog check cost in California?

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

Visit SD STAR Smog

Address
2484 F St Suite A
San Diego, CA 92102
Hours
Mon-Fri 8 AM – 6 PM, Sat 8 AM – 4 PM
View Shop Details →

Other vehicle categories

All vehicle types serviced at SD STAR Smog.

📞 Call (619) 228-9146