o2s not oscilating, always at .450"ish"

T_Vert · 11-07-2009, 07:56 PM

I went w/ a rear sensor up front and it seemed to work for a while now I've noticed in HPT that they aren't oscillating. Even if I force it into closed loop in HPT.

Any advice?
Thanks
Dave

edcmat-l1 · 11-08-2009, 08:42 AM

Quote:

Originally Posted by T_Vert

I went w/ a rear sensor up front and it seemed to work for a while now I've noticed in HPT that they aren't oscillating. Even if I force it into closed loop in HPT.

Any advice?
Thanks
Dave

Disconnected, bad connection. When they go bad they rarely stick dead in the middle.

T_Vert · 11-08-2009, 03:16 PM

replaced the o2 fuse and they started to oscillate again. Fuse only lasts for a few minutes though, I don't get it. Wires look fine, this is a 2nd set of sensors. The wiring hasnt been changed, this just started to happen all the sudden..

T_Vert · 11-09-2009, 06:42 PM

I'm going to check the schematics tonight and see how the wire runs but if a fuse blows slowly, not instantly, does that indicate maybe a bad o2 sensor blowing fuse even if it works? Maybe too much internal resistance?