P1647, Any Help it's not the O2 Sensor
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RE: P1647, Any Help it's not the O2 Sensor
Tony,
H/W is the answer from a tech as to checking the HO2 sensor.
Hope this helps....
H/W is the answer from a tech as to checking the HO2 sensor.
As the O2 sensors have been changed, next step is to test the connection to the ECM (he should measure the wire impedance*), and if this is ok, then I'm afraid the ECM may have a problem, which is rare but happens some times...
*Don't know precisely the wire impedance, but there's no need to finely analyse the values: it's just to see if the signal can be distorted by a problem on the cable or if the cable is ok.
*Don't know precisely the wire impedance, but there's no need to finely analyse the values: it's just to see if the signal can be distorted by a problem on the cable or if the cable is ok.
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ReidWings
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08-06-2015 01:42 AM
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