high numbers on scan tool

2008 BUICK LA CROSSE
176,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
Avatar
REDBONE
  • MEMBER
  • 105 POSTS
sending a picture of what i am talking about. CkP sensor value is high,would like to know what that means.
Jul 18, 2020 at 10:08 AM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Good afternoon,

What are the codes that are set? Is the check engine light on?

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

How does the car run? Are there any issues?

Roy
Jul 18, 2020 at 11:51 AM
Avatar
KASEKENNY
  • CERTIFIED EXPERT
  • 18,907 POSTS
You have one crank sensor but it has a duplication circuit inside the sensor. Take a look at the info I attached about this for more info. This is why you have sensor A and B on the scan tool. What the scan tool is saying is the counts should be between 0 and 255 pulses per revolution. This is just a standard setting that the Autel tool uses. Your vehicle will do 18 pulses per revolution on sensor A and 3 on sensor B. Clearly this would be within the spec it is expecting to see. However, the tool is going to display this differently because it may count the pulses and display for multiple revolutions.

Do you have codes or any issues with the vehicle? The reason I ask, if you have no issues then this could just be a scan tool issue in the way it is reading this data. I would trust the vehicle to tell you if there is an issue rather then a generic scan tool like this. So if there are no issues with the vehicle then I suspect this is just a scan tool issue and the way it is reading the data for this vehicle.

Let me know and we can go from there.
Jul 18, 2020 at 12:09 PM
Advertisement