[g4vvq1983]

Hi there i believe that both sensors are the same, but its not certain, they consist of two sections, the black and grey wires are for the sensor itself to keep the mixture in the engine correct, the two white wires are for the heating element and should have 12 volts across them when the engine is cold and running, the resistance across the element is about 5 to 12 ohms or there abouts....Fred in Essex.