Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSHYUNDAI2013GENESIS COUPE 2.0T PREMIUMREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 43 (ENGINE CONTROL SYSTEM (DTC TROUBLESHOOTING) (2 OF 3) - 2.0L)DTC P0420: CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1)SIGNAL WAVEFORM & DATA
2013 Hyundai Genesis Coupe 2.0T Premium
Signal Waveform & Data
2013 Hyundai Genesis Coupe 2.0T PremiumSECTION Signal Waveform & Data
WARNING: This page is about a different car, the 2012 Hyundai Genesis Coupe. However, it is still accessible from the selected car via links, so may be relevant.
Scantool Display for HO2S
TEST CONDITION AND SCANTOOL PARAMETER CHART
| Test Condition | Scan Tool Parameter | ||
|---|---|---|---|
| O2 SNSR VOL.-B1/S1 | O2 SNSR VOL.-B1/S2 | ||
| Normal Value when circuit is normal | Idle after warm up | Signal is switching from rich (above 0.45V) to lean (below 0.45V) a minimum of 3 times in 10 seconds. | above 0.7V |
| HO2S (B1S1) signal circuit open | Approx. 0.43~0.45V | - | |
| HO2S (B1S2) signal circuit open | - | Approx. 0.43~0.45V | |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.