vehicle had a 4 wire 02 sensor and had 5volts going back to the computer, installed a 3 wire 02 sensor, has 4 wires on the harness from the vehicle, at idle the 02 sensor reads 1.2 volts and does not switch, pull brake vacuum hose the 02 volts drop to .3 volts...

FIX posted 10/18/2005

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