running rich
Elder User
Joined: Feb 2004
Posts: 830
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From: Indiana
The 173 code indicates that the O2 sensor is not switching from open to closed loop. That doesn't always mean the O2 sensor is bad.
Has the thermastat been changed or your water/coolant level low? Too low of temp thermastat could effect it. The water temp sensor for the computer (not the one that goes to the instrument panel) could be bad.
Does your engine have a air intake temp sensor or a mass air flow sensor?
Has the thermastat been changed or your water/coolant level low? Too low of temp thermastat could effect it. The water temp sensor for the computer (not the one that goes to the instrument panel) could be bad.
Does your engine have a air intake temp sensor or a mass air flow sensor?
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78bronco
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
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May 3, 2002 05:25 PM
