Heated oxygen sensors?
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
It will let you see SENSOR DATA. To me,,, that's important info because I understand what sensors do, how they work and what the data output represents.
Just looking at numbers changing on the display of the scanner and not knowing what they mean, will do nothing for you. If the output of a sensor is reading 5 millivolts, Is that good or bad? If you know that the output value is normally 30 millivolts, then you have an issue that you need to troubleshoot.
IF, you understand what the Scanner data is telling you, YES, get the scanner. If you are willing to gather the data and post it so others can decipher it and help you, YES, get the scanner.
I always tell people to use the DIC to read the CODES. Someone asked me why I have a scanner. I have a scanner to read my OTHER OBD2 vehicles that cant display the DTC. I also have EFI Live for my C5 and C6. The C6 DOES NOT have the ability to display DTCs. I have to interface it with my CAN BUS Compliant Actron Scanner to read DTC if I don't want to break out my EFI Live and the computer.
If you have NO other way to examine the PCM sensor data, the Actron scanner will let you see O2 Sensor Output and insure that its oscillating properly. It should swing from LOW to HIGH to LOW to HIGH......... when the engine is steady state or idling. If it is steady at one single voltage all the time, its not working.
Your LTFTs should be 0 or slightly negative. If they are very high or very low, the PCM is compensating for a fueling error.
The scanner will NOT let you TUNE the PCM but it will allow you to see if something is working incorrectly and you can fix that issue.
Make sure that you read the scanner instructions and select the correct PIDS for the sensors that you need or want to examine. Don't select all of them because it will cause the data to up-date too slowly.
Hope this helps.
Bill
Just looking at numbers changing on the display of the scanner and not knowing what they mean, will do nothing for you. If the output of a sensor is reading 5 millivolts, Is that good or bad? If you know that the output value is normally 30 millivolts, then you have an issue that you need to troubleshoot.
IF, you understand what the Scanner data is telling you, YES, get the scanner. If you are willing to gather the data and post it so others can decipher it and help you, YES, get the scanner.
I always tell people to use the DIC to read the CODES. Someone asked me why I have a scanner. I have a scanner to read my OTHER OBD2 vehicles that cant display the DTC. I also have EFI Live for my C5 and C6. The C6 DOES NOT have the ability to display DTCs. I have to interface it with my CAN BUS Compliant Actron Scanner to read DTC if I don't want to break out my EFI Live and the computer.
If you have NO other way to examine the PCM sensor data, the Actron scanner will let you see O2 Sensor Output and insure that its oscillating properly. It should swing from LOW to HIGH to LOW to HIGH......... when the engine is steady state or idling. If it is steady at one single voltage all the time, its not working.
Your LTFTs should be 0 or slightly negative. If they are very high or very low, the PCM is compensating for a fueling error.
The scanner will NOT let you TUNE the PCM but it will allow you to see if something is working incorrectly and you can fix that issue.
Make sure that you read the scanner instructions and select the correct PIDS for the sensors that you need or want to examine. Don't select all of them because it will cause the data to up-date too slowly.
Hope this helps.
Bill
Thread Starter
Instructor
Joined: Nov 2013
Posts: 142
Likes: 0
From: Christiansburg Virginia
It will let you see SENSOR DATA. To me,,, that's important info because I understand what sensors do, how they work and what the data output represents.
Just looking at numbers changing on the display of the scanner and not knowing what they mean, will do nothing for you. If the output of a sensor is reading 5 millivolts, Is that good or bad? If you know that the output value is normally 30 millivolts, then you have an issue that you need to troubleshoot.
IF, you understand what the Scanner data is telling you, YES, get the scanner. If you are willing to gather the data and post it so others can decipher it and help you, YES, get the scanner.
I always tell people to use the DIC to read the CODES. Someone asked me why I have a scanner. I have a scanner to read my OTHER OBD2 vehicles that cant display the DTC. I also have EFI Live for my C5 and C6. The C6 DOES NOT have the ability to display DTCs. I have to interface it with my CAN BUS Compliant Actron Scanner to read DTC if I don't want to break out my EFI Live and the computer.
If you have NO other way to examine the PCM sensor data, the Actron scanner will let you see O2 Sensor Output and insure that its oscillating properly. It should swing from LOW to HIGH to LOW to HIGH......... when the engine is steady state or idling. If it is steady at one single voltage all the time, its not working.
Your LTFTs should be 0 or slightly negative. If they are very high or very low, the PCM is compensating for a fueling error.
The scanner will NOT let you TUNE the PCM but it will allow you to see if something is working incorrectly and you can fix that issue.
Make sure that you read the scanner instructions and select the correct PIDS for the sensors that you need or want to examine. Don't select all of them because it will cause the data to up-date too slowly.
Hope this helps.
Bill
Just looking at numbers changing on the display of the scanner and not knowing what they mean, will do nothing for you. If the output of a sensor is reading 5 millivolts, Is that good or bad? If you know that the output value is normally 30 millivolts, then you have an issue that you need to troubleshoot.
IF, you understand what the Scanner data is telling you, YES, get the scanner. If you are willing to gather the data and post it so others can decipher it and help you, YES, get the scanner.
I always tell people to use the DIC to read the CODES. Someone asked me why I have a scanner. I have a scanner to read my OTHER OBD2 vehicles that cant display the DTC. I also have EFI Live for my C5 and C6. The C6 DOES NOT have the ability to display DTCs. I have to interface it with my CAN BUS Compliant Actron Scanner to read DTC if I don't want to break out my EFI Live and the computer.
If you have NO other way to examine the PCM sensor data, the Actron scanner will let you see O2 Sensor Output and insure that its oscillating properly. It should swing from LOW to HIGH to LOW to HIGH......... when the engine is steady state or idling. If it is steady at one single voltage all the time, its not working.
Your LTFTs should be 0 or slightly negative. If they are very high or very low, the PCM is compensating for a fueling error.
The scanner will NOT let you TUNE the PCM but it will allow you to see if something is working incorrectly and you can fix that issue.
Make sure that you read the scanner instructions and select the correct PIDS for the sensors that you need or want to examine. Don't select all of them because it will cause the data to up-date too slowly.
Hope this helps.
Bill
I checked the ground connector under the battery. Everything looks good there. No corrosion. Put some electricaly conductive grease on to protect the terminals.
Tested voltage on the O2 fuse. 12.57v
Don't know what to do next. Thanks for ALL your help and suggestions...
Arden
