obd sensors

[bill B]

I am looking for clear information on OBD scanner data analysis. Where do I find how I should be evaluating these sensors and the logic behind their operation? I looked on the Internet, your forum, bookstore and in my shop manual but they all talk about errors not the norms.
The EGR is commanded to 0% but it says the position is 99.2%, that doesn’t look right. What is the difference between throttle absolute, relative, commanded, commanded ratio, app D&E% and position (%) throttle?

Topic

[dreamer2355]

I replied to your PM. Hopefully that helps.

[bill B]

Thank you for taking time out of your busy schedule to help me. This is going to be a big project to find the information the manufactures don’t release. I heard on the news they are trying to get the manufactures to share their information.

[johnzcarz]

[quote=”2odysseys” post=36668]I am looking for clear information on OBD scanner data analysis. Where do I find how I should be evaluating these sensors and the logic behind their operation? I looked on the Internet, your forum, bookstore and in my shop manual but they all talk about errors not the norms.
The EGR is commanded to 0% but it says the position is 99.2%, that doesn’t look right. What is the difference between throttle absolute, relative, commanded, commanded ratio, app D&E% and position (%) throttle?[/quote]

This might help answer some questions. Paul is a member here….

[Author]

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