Catalytic Converters
We Diagnose & Replace CA Legal Converters
The JUST SMOGS® + REPAIR Advantage
We are proud to be one of the few Green Certified Sustainable Business in Huntington Beach. As an AAA Auto Repair Approved Facility, you can be confident that our ASE certified technicians will diagnosis and repair your vehicle. We back our repairs with a 24 month / 24,000 mile warranty.
Unlike most smog shops, JUST SMOG® is powered by multiple technicians, analyzers and years of experience. This allows us to provide consistently fast & efficient service. Four smog check lanes = No more waiting in line!
Family owned & operated since 2000. We back our smog checks with a 100% satisfaction guarantee. If you’re not completely satisfied with our service, we will make it right.
The Bureau of Automotive Repair (BAR) CAP program offers up to $1200 towards emission related repairs for qualified California motorists if your vehicle fails it’s biennial smog check inspection.
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Specializing in Catalytic Converters
The three most common symptoms that may indicate a catalytic converter is possibly defective
- Illuminated Check Engine Light (MIL) with stored or pending trouble codes: P0420 and/or P0430
- Rattling noise in the exhaust
- Smog check inspection failure for emission gases: HC, CO and/or NOx
My vehicle has a check engine light on and the stored code is P0420 and/or P0430. What does this mean?
- P0420 DTC (Diagnostic Trouble Code) – Catalyst System Efficiency Below Threshold (Bank 1)
- P0430: Catalyst System Efficiency Below Threshold (Bank 2)
- Your vehicle’s computer has found that the catalytic converter(s) are underperforming based on data it receives from sensors.
- Just because a P0420 code is present, it doesn’t necessarily mean that the catalytic converter is defective. The catalytic converter and other related systems must me diagnosed by a qualified technicians. Exhaust leaks and defective sensors can cause false P0420/P04230 DTCs.
So, my vehicle’s catalytic converter is defective. Now what?
- Catalytic converters can be expensive. You may qualify for the Consumer Assistance Program (CAP). For income qualified California motorists, you can be subsidized up to $1200 towards emission related repairs if your vehicle has failed it’s smog check. Please visit the states site for most up to date restrictions and details.
- Although a factory (OEM) catalytic converter replacement is usually the highest quality part, they can be much more expensive. At JUST SMOGS®, we install OEM converters when the price difference compared to aftermarket are negligible or when there are no California approved aftermarket converters available.
- Just because a converter is CA approved, does not make it legal for your vehicle
- An aftermarket converter must be approved by CARB (California Air Resource Board) for the precise application to your vehicle to be considered legal in California
- The converter must match: Executive Order Number (EO#), Part Number, Engine Family Number (1996+), Year/Make/Model, Engine Size and Location within the vehicle exhaust.
- If any of the above does not match between the CARB’s website and the aftermarket converter installed in the vehicle, it is considered to be a tampered modification by the State of California.
- In California, catalytic converters can be expensive and complicated.
- Prior to replacing a catalytic converter, get it diagnosed by a licensed professional
- If replacing with an aftermarket converter, make sure that it is the EXACT legal replacement for your application.
