Quote:
Originally Posted by Frank Reiner
The relay has two functions; the fuel pump, and the heater for the O2 sensor. If the heater circuit is grounded or shorted, the solid state portion of the relay will be damaged, and both functions cease to operate. If a replacement relay is installed without insuring that the O2 heater wiring is OK, the new relay may suffer the same fate.
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How can I test the O2 heater wiring? I think (although I may be wrong) the car does not have an O2 sensor or cat. It is Euro spec.