YOU CAN'T FIX IT THE OLD WAY

摘要

As you are working on today's vehicles you won't be able to fix many different vehicle problems unless you are able to reprogram the vehicle. Our case in point is a 2006 Ford Explorer with a 4.6L V8 (Figure 1) that came in the shop with an EVAP circuit and O_2 heater circuit problem. The associated Diagnostic Trouble Codes (DTCs) were P0141 (O_2 heater Circuit Bank 1 Sensor 2), P0161 (O_2 heater Circuit Bank 2 Sensor 2) and P0443 (EVAP System Purge Control Valve Circuit). Other than these DTCs, the vehicle ran fine, but with the MIL illuminated the vehicle would not pass inspection.