 Need help with resistance !, CEL GONE !!! |
 Jun 13, 2007 - 6:03 PM
|
 
|
 Enthusiast  Joined Apr 17, '06 From New Jersey Currently Offline Reputation: 105 (100%)  |
I'm gonna be replacing the EGR gas temp. sensor with a resistor, so I can clear a CEL I have, but in order to replace it with the right resistor I need to know the resistance on such sensor at normal engine operating temperatures.
the resistance changes with the temperature, if anybody know what should be the resistance at normal operating temperature or is willing to test the sensor for me, it's be a great help. BTW. I can't test mine because the engine I have on my celi doesn't have the port for the probe to get teh temperature reading.  that's how I got the CEL.
This post has been edited by Culpable04: Jun 15, 2007 - 12:45 PM --------------------  |
 |
Replies
|
Jun 14, 2007 - 11:08 PM
|
|
|
Enthusiast Joined Jun 15, '06 From NJ Currently Offline Reputation: 1 (100%) |
the temp probe is there to tell the ecm if/when the egr is operating properly. when the egr activates the probe temperature will go up, when the egr is not activated the probe temperature will go down. you really cant fool it with a resistor. im not sure if an obd1 ecm will check if the probe temp is wrong at a certain time, but an obd2 ecm definately will. if you have the probe connected properly, ie no short or open, but it is just hanging out in the engine bay, id be willing to bet it is monitored and will set the MIL if it doesnt see the correct resistance/temp at the right time.
|
|
Jun 15, 2007 - 12:01 AM
|
|
 Enthusiast Joined Aug 28, '04 From FLA USA Currently Offline Reputation: 4 (100%) |
QUOTE(cheeco @ Jun 15, 2007 - 12:08 AM) [snapback]568674[/snapback] the temp probe is there to tell the ecm if/when the egr is operating properly. when the egr activates the probe temperature will go up, when the egr is not activated the probe temperature will go down. you really cant fool it with a resistor. im not sure if an obd1 ecm will check if the probe temp is wrong at a certain time, but an obd2 ecm definately will. if you have the probe connected properly, ie no short or open, but it is just hanging out in the engine bay, id be willing to bet it is monitored and will set the MIL if it doesnt see the correct resistance/temp at the right time. Nope, not on OBD I. As I already posted above, if you can ground the THG or short the pins on the EGR temp sensor, you will not have errror code. The diagram below is straight from the BGB.  -------------------- _Gary
 |
Posts in this topic
Culpable04 Need help with resistance ! Jun 13, 2007 - 6:03 PM
bindertch At 122F it should be 64-97 ohms, at 212F it should... Jun 14, 2007 - 2:27 AM Gary On 5th gen EGR system, non-California cars come wi... Jun 14, 2007 - 8:54 AM Culpable04 QUOTE(Gary @ Jun 14, 2007 - 8:54 AM)... Jun 14, 2007 - 10:45 AM Gary There are 2 wires going to the EGR temp sensor.
Di... Jun 14, 2007 - 12:06 PM Culpable04 QUOTE(Gary @ Jun 14, 2007 - 12:06 PM... Jun 14, 2007 - 2:00 PM Culpable04 QUOTE(cheeco @ Jun 14, 2007 - 11:08 ... Jun 14, 2007 - 11:11 PM Batman722 but Gary there is problem, his ECU is from a cali ... Jun 15, 2007 - 12:06 AM Gary Dustin,
The method above is how most CA-spec alltr... Jun 15, 2007 - 12:26 AM cheeco QUOTE The diagram below is straight from the BGB. ... Jun 15, 2007 - 12:48 AM
Gary QUOTE(cheeco @ Jun 15, 2007 - 1:48 A... Jun 15, 2007 - 11:47 AM Culpable04 guys, it has been a lot of help for me, all your i... Jun 15, 2007 - 12:32 PM Gary Glad it works out for you. Jun 16, 2007 - 12:34 AM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
| Lo-Fi Version | Time is now: November 9th, 2025 - 7:00 PM |