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SUBARU IMPREZA EJ20G 1993

Posted by Paul Garland <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2597' width='330' height='300' border=0 style='border:none;'> on December 10, 2008, 10:52 pm
Paul Garland

Hi, Can anyone tell me what reading i should see from lamdba sensor wire's on this vehicle, i assume it's a titania sensor, with 3 wires, black, red & white. Car is running rich, lambda not switching with mixture change, current readigs are; Back 0.1V, Red 12.49v white 0.3v. If anyone has a wiring diagram and pin out data etc, it would certainly help.(wiring is in a real mess)

Thanks Paul

Re: SUBARU IMPREZA EJ20G 1993

Posted by Peter Wright <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1647' width='330' height='300' border=0 style='border:none;'> on December 11, 2008, 2:38 pm, in reply to "SUBARU IMPREZA EJ20G 1993"
Peter Wright

Paul.

I don't believe the Subaru's used a Titania sensor, I believe it was just a heated Zirconia Sensor BUT I could be wrong

If the vehicle is RICH and the O2 sensor signal is LOW (0.3v)and not switching, then you most likely have a dead or dying sensor be it Titania or Zirconia sensor OR an air leak in the exhaust very close to the sensor.

Cheers

Peter Wright

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