junkfixr
New Member
- Joined
- Mar 3, 2010
- Messages
- 82
- Reaction score
- 0
- Points
- 0
- Location
- Virginia
- Vehicle Year
- 1987
- Make / Model
- ford
- Engine Size
- 2.9
- Transmission
- Automatic
My truck is too old for Auto Zone to read the code on. I've eliminated everything except Air Charge Temp sensor and o2 sensor. It idles ok, intermittent sputter but smooths back out. It sputters and stalls under normal acceleration but if press it to wide open throttle it goes like crazy. No hesitation, no sputter, no problem.
Has anyone seen the o2 sensor cause these problems? It's what I'm leaning towards. Tune up, fuel pressure test & all other engine sensors have been checked or replaced except these two sensors, and the o2 sensor hasn't been swapped in at least the 7 years that I've owned it. (I've got tons of spare parts & replaced all the obvious ones.) It acts just like a fuel filter problem, but pressure is good and filter is new.
Any help or suggestions appreciated.It runs better when cold and I'm just throwing parts at it now.
Has anyone seen the o2 sensor cause these problems? It's what I'm leaning towards. Tune up, fuel pressure test & all other engine sensors have been checked or replaced except these two sensors, and the o2 sensor hasn't been swapped in at least the 7 years that I've owned it. (I've got tons of spare parts & replaced all the obvious ones.) It acts just like a fuel filter problem, but pressure is good and filter is new.
Any help or suggestions appreciated.It runs better when cold and I'm just throwing parts at it now.
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