173
Thread Starter
|
New User
Joined: Jan 2003
Posts: 6
Likes: 0
173
'92 f-150 ext. cab 5.0 v8 2wd
132,000 miles
I have been getting a code 173 - "o2 sensor fault/rich".
I have now replaced the sensor and am still getting the code. Can someone please give me a magic solution that is fast and easy?
Probably not - but any suggestions or experience in the area would be appreciated...the mileage is KILLING me.
gig 'em aggies
132,000 miles
I have been getting a code 173 - "o2 sensor fault/rich".
I have now replaced the sensor and am still getting the code. Can someone please give me a magic solution that is fast and easy?
Probably not - but any suggestions or experience in the area would be appreciated...the mileage is KILLING me.
gig 'em aggies
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
173
There was nothing wrong with the original sensor - don't read a code and just replace the part that's mentioned. The code tells you which sensor is detecting a problem and what that problem is (within the limits of how the system works). You should then diagnose everything that affects that sensor. In your case, check fuel pressure, injector leakage, vacuum leaks, compression, spark plugs & the whole ignition system, ...
Postmaster
Joined: Jan 2003
Posts: 3,775
Likes: 0
From: Conway Arkansas
173
Im not sure about the fords... but my past 2 Chebbies had problems like that. After you replace the senors your supposed to disconnect the battery for 30 seconds, and reconnect it.
This resets the computer. Or after 50 (i think) starts it resets itself if the sensor fixed it.
Its a PITA if you do the start thing, I usually just do the battery disconnect.
But then again, Im not sure if Fords are this way, but Im sure they are.
If you still have problems with it... get a truck you won't have to worry much about... a 66 Custom Cab
This resets the computer. Or after 50 (i think) starts it resets itself if the sensor fixed it.
Its a PITA if you do the start thing, I usually just do the battery disconnect.
But then again, Im not sure if Fords are this way, but Im sure they are.
If you still have problems with it... get a truck you won't have to worry much about... a 66 Custom Cab
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
173
Now that you mention it, aggie didn't specifically say he had ever CLEARED the codes, so it may just be a leftover. This page and the Haynes manual tell how to clear them.
Ford EFIs need the battery to be unhooked for ~5mins to clear the adaptive strategy from the computer, and they may run rough for ~10 miles afterward while the computer relearns all the sensors, including the new one.
Ford EFIs need the battery to be unhooked for ~5mins to clear the adaptive strategy from the computer, and they may run rough for ~10 miles afterward while the computer relearns all the sensors, including the new one.
Thread Starter
|
New User
Joined: Jan 2003
Posts: 6
Likes: 0
173
After replacing the sensor, I got the code a couple more times, but after clearing the codes using my code reader, it has been three weeks and it has not thrown me any new codes...hopefully my problem is solved. It is also idling great when I start it up. Thanks for all the help.
