All 4 O2 Heater sensors going at once?
Senior Member
Joined: Jun 2010
Posts: 16,528
Here is where it gets interesting.
If you find another feature is non functioning, best to take things one at a time. A schematic diagram covering the circuit for the oxygen sensors is practically required here.
If you find another feature is non functioning, best to take things one at a time. A schematic diagram covering the circuit for the oxygen sensors is practically required here.
Last edited by hanky; Jul 26, 2020 at 07:53 AM.
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Junior Member
Joined: Jul 2020
Posts: 8
Here is where it gets interesting.
If you find another feature is non functioning, which I doubt they would include other features on such a critical circuit, that opens another can of worms.
Best to take things one at a time. A schematic diagram covering the circuit for the oxygen sensors is practically required here.
If you find another feature is non functioning, which I doubt they would include other features on such a critical circuit, that opens another can of worms.
Best to take things one at a time. A schematic diagram covering the circuit for the oxygen sensors is practically required here.
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Junior Member
Joined: Jul 2020
Posts: 8
Myself, I wouldn't bet on a longshot that all four sensors have failed at the same time. You either lost power to them or your powertrain computer is not providing a ground to complete the heater circuit for your O2 sensors or open wiring/connections between the heaters and that powertrain processor..
Look at harnesses which may be laying on brackets, a/c lines, chassis etc. Fuses do not wear out and they blow for a reason. If a fuse fixes it, I would be prepaired for the fuse to eventually blow again in the near future.
BTW- I think you have a 6.2 engine in your F350. It is the only gas engine listed for your truck.
Look at harnesses which may be laying on brackets, a/c lines, chassis etc. Fuses do not wear out and they blow for a reason. If a fuse fixes it, I would be prepaired for the fuse to eventually blow again in the near future.
BTW- I think you have a 6.2 engine in your F350. It is the only gas engine listed for your truck.
Senior Member
Joined: Jun 2010
Posts: 16,528
From what I can see from an earlier diagram ,they do share the circuit with other functions.
One of the things you will need to check, make sure the sensors are in there. sometimes guys alter things and figure they don't need them and either by-pass them or remove them. A good visual is a good place to start. Curious as to just what you find, thanks.
Whatever it is ,,,,,,,,,,,is common to all of them. Look for open ground wires too.
One of the things you will need to check, make sure the sensors are in there. sometimes guys alter things and figure they don't need them and either by-pass them or remove them. A good visual is a good place to start. Curious as to just what you find, thanks.
Whatever it is ,,,,,,,,,,,is common to all of them. Look for open ground wires too.
Last edited by hanky; Jul 26, 2020 at 08:15 AM.
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Junior Member
Joined: Jul 2020
Posts: 8
From what I can see from an earlier diagram ,they do share the circuit with other functions.
One of the things you will need to check, make sure the sensors are in there. sometimes guys alter things and figure they don't need them and either by-pass them or remove them. A good visual is a good place to start. Curious as to just what you find, thanks.
Whatever it is ,,,,,,,,,,,is common to all of them. Look for open ground wires too.
One of the things you will need to check, make sure the sensors are in there. sometimes guys alter things and figure they don't need them and either by-pass them or remove them. A good visual is a good place to start. Curious as to just what you find, thanks.
Whatever it is ,,,,,,,,,,,is common to all of them. Look for open ground wires too.
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