2018 GMC Sierra 1500
Mileage
83,412
Service Date
4/27/2023
Services Performed
- SCAN PCM FOR CHECK ENGINE LIGHT, FOUND CODE P0420-CATALYST SYSTEM LOW EFFICIENCY BANK 1. PERFORMED TEST DRIVE WITH SCANNER GRAPHING 02 SENSORS AND FIND B1S2 SENSOR ACTIVITY MORE THAN PASSENGER SIDE. DRIVER SIDE CATALYST ABILITY TO STORE 02 IS NOT WITHIN SPECS. CAUSE OF FAILURE WOULD NEED TO NE KNOWN SO AS NOT TO COMPROMISE NEW CAT.
Mario B. gave our service a 5 star review on 5/3/2023
