95 Ford probe code 181


Old 09-25-04, 12:01 AM
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95 Ford probe code 181

I've got a '95 ford probe that I'm getting a fault code 181 (o2 sensor fault,unable to switch lean during part throttle). I've replaced the temp sensor and O2 sensor to no avail. Car runs fine, but sometimes runs rough at speed (70). I'm thinking computer but its hardly ever that, so?
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Old 09-25-04, 07:39 AM
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Hey jeffk,
Yeah that "o2 sensor code" doesn't necessarily mean the sensor is bad
Just that it's not switching during part throttle
It's prolly not the comp
Check your mass airflow sensor for crud build up
Then I'd say check your throttle position sensor voltage
Sorry I don't know what it should be on a probe, but if the voltage is jumping around on you, somethings wrong w/it
Old 09-26-04, 10:34 AM
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Check out www.probetalk.com for great Probe info (similar to mx6.com)
Heres something I found....that may help you out.

and this one...(a bit long..but helpful)
..Technical info....
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