P0420 Code: Catalyst System Efficiency Below Threshold (Bank 1)
A common emissions code seen in the field, a P0420 trouble code, indicates that the …
Engine Problems
P0171 OBD-II Trouble Code: Fuel Trim System Too Lean (Bank 1)
When your vehicle’s powertrain control module (PCM) detects your vehicle’s air-to-fuel ratio is too lean, …
C1201 Code: Engine Control System Malfunction
While some trouble codes indicate the same problem for every automotive brand, others are simply …
Complete OBD1 Code List and How to Read Them From Home
Do you own a GM vehicle from 1980-1995? If yes, there is a high possibility …