P0420 Diagnostic Trouble Code Discussion for May 2023
Catalyst Efficiency Below Normal (Bank 1)
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| Help Request | Posted | |
| 2016 Chevrolet Cruze LS 1.4L MIL Lamp on, P0420 VIN: 1G1PC5SG1G P0420: Cat efficiency below threshold. ... look ver this. The vehicle is acctually a "limited", with a 1.8l. I am currently the service manager at a mazda dealership. Took this vehicle in on trade with the ,"p0420", code. Went the inexpensive route, down stream o2 sensor, code... |
May 04, 2023 |
