P0420 Diagnostic Trouble Code Discussion for April 2016
Catalyst Efficiency Below Normal (Bank 1)
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P0420
| Help Request | Posted | |
| 1998 Chevrolet Metro LSi 1.3L MIL Lamp on VIN: 2C1MR5291W P0420: Catalyst Efficiency Below Threshold. ... sold me the vehicle. I bought a new battery and in about 500 miles the Check Engine Soon light illuminated, and when I scanned it the code P0420 was an active code. I usually wind up replacing converters when I see this code, but what has me thrown off is... |
April 03, 2016 | |
| 2006 Dodge Charger R/T 5.7L Cuts out, Stall VIN: 2B3KA53H36 P0420: Catalyst Efficiency Below Normal (Bank 1). This ones a real tough one ! IT has been in several times over the past year . heres a list of stuff thats been done, No Start: bad fuel pump Replaced with Mopar pump PCM replaced due to oil pressure sender shorted also replaced (fixed problem) . Spark plugs (... |
April 13, 2016 | |
| 2006 Dodge Charger R/T 5.7L Cuts out, Stall VIN: 2B3KA53H36 P0420: Catalyst Efficiency Below Normal (Bank 1). This ones a real tough one ! IT has been in several times over the past year . heres a list of stuff thats been done, No Start: bad fuel pump Replaced with Mopar pump PCM replaced due to oil pressure sender shorted also replaced (fixed problem) . Spark plugs (... |
April 18, 2016 |
