PO470 is a code for (Exhaust Pressure Sensor Circuit Malfunction), The codes come from OBD-II, ISO9141 E.T.C., Standards. You can purchase from E-Bay and buy U380 Memo Scanner Read trouble Codes amd Clear Codes. Cost 20$. Manual has codes to look up.
Trouble code P0470 means: Exhaust Backpressure Sensor Circuit Malfunction
A Ford diesel diagnostic code P0470 means there is an exhaust pressure sensor malfunction. This may be caused by faulty exhaust back pressure sensor, or pressure sensor is open or shorted.
It's on the throttle body of the Ford Aspire.
P0470 is Exhaust back pressure sensor malfunction.
where's the relay on a 95 ford aspire Which Relay?
NO!
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For engine error code, it means EGR valve/solenoid malfunction