Maybe someone knows
Thread Starter
|
Senior User
Joined: Jan 2006
Posts: 156
Likes: 0
From: Southeast mi
Maybe someone knows
I have a code 0470, Ebv sensor.
I have cleaned sensor, replaced tube do to rust hole in bottom of it i, and still have code, this is the part that bothers me,
I have used a SC 1705 to clear code and it still comes up, (without starting engine)
I cleaned my battery posts and decided to leave them off, since it was late I just kept them off all night, next morning put them back on and did not start my Rig and code is still there....
I would like to see if i can get this code to a least go away for a few if possible...any other codes i have gotten from either alternator going out or over fuelling have been removed with the SC 1705....but have had no luck at this one,
I know 0470 is no big deal...just annoys me that i cant clear it,,,
Thank any help would be respected....
I have cleaned sensor, replaced tube do to rust hole in bottom of it i, and still have code, this is the part that bothers me,
I have used a SC 1705 to clear code and it still comes up, (without starting engine)
I cleaned my battery posts and decided to leave them off, since it was late I just kept them off all night, next morning put them back on and did not start my Rig and code is still there....
I would like to see if i can get this code to a least go away for a few if possible...any other codes i have gotten from either alternator going out or over fuelling have been removed with the SC 1705....but have had no luck at this one,
I know 0470 is no big deal...just annoys me that i cant clear it,,,
Thank any help would be respected....
Thread Starter
|
Senior User
Joined: Jan 2006
Posts: 156
Likes: 0
From: Southeast mi
Thanks....but should'nt i still be able to clear the code, then if the sensor is bad it would just show back up after starting, since there is no pressure to the switch without the engine running, i dont see how the computer could tell if it is bad....
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
Originally Posted by rickgmi
Thanks....but should'nt i still be able to clear the code, then if the sensor is bad it would just show back up after starting, since there is no pressure to the switch without the engine running, i dont see how the computer could tell if it is bad....
Thread Starter
|
Senior User
Joined: Jan 2006
Posts: 156
Likes: 0
From: Southeast mi
OK..I see, So it is possible for a sensor to toss a code before any pressure reading are applied.....Then I guess it would have to loose all resistance when it goes bad...
When i get a new sensor im going to compare Ohms..so maybe next time that would be a way of testing the sensor..take off connector, hit with trusty muli-meter and you have the answer....without checking for a clogged exhaust tube. First
Thank you..for the quick come back...
When i get a new sensor im going to compare Ohms..so maybe next time that would be a way of testing the sensor..take off connector, hit with trusty muli-meter and you have the answer....without checking for a clogged exhaust tube. First
Thank you..for the quick come back...
Postmaster
Joined: Jun 2005
Posts: 3,438
Likes: 0
From: New Hampshire
The sensor is a variable capacitor that sends an analog voltage to the PCM dependent on exhaust pressure. As JT said, if it's bad it sets a code with the pcm and must be replaced to clear the code.
Nut
Nut
Thread Starter
|
Senior User
Joined: Jan 2006
Posts: 156
Likes: 0
From: Southeast mi
Hope i dont sound dumb here...but would'nt that mean that the sensor would have to send an open condition for the PCM to detect something is wrong...what im trying to figure out, when one of these sensors go bad there should be away to tell before having to replace,,,say resitance 2.2-5 ohms..something like that...
lets say a wire grounded or something from me laying ontop of engine getting back to turbo or something,,, I would hate to go buy the sensor just to find out that it was not the problem...I really never have found any sensors or anything electrical that can not be tested is some fourm or another..it being a capacitor then it should have a voltage rise then drop when it gets to the predetermined condition...this will be what im hoping to find out....
lets say a wire grounded or something from me laying ontop of engine getting back to turbo or something,,, I would hate to go buy the sensor just to find out that it was not the problem...I really never have found any sensors or anything electrical that can not be tested is some fourm or another..it being a capacitor then it should have a voltage rise then drop when it gets to the predetermined condition...this will be what im hoping to find out....
Trending Topics
Postmaster
Joined: Jun 2005
Posts: 3,438
Likes: 0
From: New Hampshire
Originally Posted by rickgmi
Hope i dont sound dumb here...but would'nt that mean that the sensor would have to send an open condition for the PCM to detect something is wrong...what im trying to figure out, when one of these sensors go bad there should be away to tell before having to replace,,,say resitance 2.2-5 ohms..something like that...
lets say a wire grounded or something from me laying ontop of engine getting back to turbo or something,,, I would hate to go buy the sensor just to find out that it was not the problem...I really never have found any sensors or anything electrical that can not be tested is some fourm or another..it being a capacitor then it should have a voltage rise then drop when it gets to the predetermined condition...this will be what im hoping to find out....
lets say a wire grounded or something from me laying ontop of engine getting back to turbo or something,,, I would hate to go buy the sensor just to find out that it was not the problem...I really never have found any sensors or anything electrical that can not be tested is some fourm or another..it being a capacitor then it should have a voltage rise then drop when it gets to the predetermined condition...this will be what im hoping to find out....
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread Starter
|
Senior User
Joined: Jan 2006
Posts: 156
Likes: 0
From: Southeast mi
Thanks psnut...
I have used multi-meters before....it will just be fun for me, but for now I think when i get the chance im going to really investagate this..I hear alot about 04** codes and if i can come up with something easy that will check this, then I just might help alot of owners and save them some money...
What started me on this is that I had the code and searched on here and found the tube clogs up...so when i went to remove mine and clean it, it just twisted in the fittling close to the exhaust gasket, when i pulled it i found that the metal was weak from rust and the fitting in the exhaust manifold was blocked , and the dealer wanted $53 for a new tube, so i made my own and cleaned the fitting..and still had prolem,
so hope fully if i have the problem again..i can just pop the clip on the sensor and test it...that way i dont have any question to it condition...Just learning as much as possible about these engines and hoping to help others..Thanks again
I have used multi-meters before....it will just be fun for me, but for now I think when i get the chance im going to really investagate this..I hear alot about 04** codes and if i can come up with something easy that will check this, then I just might help alot of owners and save them some money...
What started me on this is that I had the code and searched on here and found the tube clogs up...so when i went to remove mine and clean it, it just twisted in the fittling close to the exhaust gasket, when i pulled it i found that the metal was weak from rust and the fitting in the exhaust manifold was blocked , and the dealer wanted $53 for a new tube, so i made my own and cleaned the fitting..and still had prolem,
so hope fully if i have the problem again..i can just pop the clip on the sensor and test it...that way i dont have any question to it condition...Just learning as much as possible about these engines and hoping to help others..Thanks again
Thread Starter
|
Senior User
Joined: Jan 2006
Posts: 156
Likes: 0
From: Southeast mi
Thanks psnut...
I have used multi-meters before....it will just be fun for me, but for now I think when i get the chance im going to really investagate this..I hear alot about 04** codes and if i can come up with something easy that will check this, then I just might help alot of owners and save them some money...
What started me on this is that I had the code and searched on here and found the tube clogs up...so when i went to remove mine and clean it, it just twisted in the fittling close to the exhaust gasket, when i pulled it i found that the metal was weak from rust and the fitting in the exhaust manifold was blocked , and the dealer wanted $53 for a new tube, so i made my own and cleaned the fitting..and still had prolem,
so hope fully if i have the problem again..i can just pop the clip on the sensor and test it...that way i dont have any question to it condition...Just learning as much as possible about these engines and hoping to help others..Thanks again
I have used multi-meters before....it will just be fun for me, but for now I think when i get the chance im going to really investagate this..I hear alot about 04** codes and if i can come up with something easy that will check this, then I just might help alot of owners and save them some money...
What started me on this is that I had the code and searched on here and found the tube clogs up...so when i went to remove mine and clean it, it just twisted in the fittling close to the exhaust gasket, when i pulled it i found that the metal was weak from rust and the fitting in the exhaust manifold was blocked , and the dealer wanted $53 for a new tube, so i made my own and cleaned the fitting..and still had prolem,
so hope fully if i have the problem again..i can just pop the clip on the sensor and test it...that way i dont have any question to it condition...Just learning as much as possible about these engines and hoping to help others..Thanks again