I have a 1999 Blazer S10. 4,3L. What I wonder about is the measurement values of the different sensors on the car. Searching around online, but I can't find much. Does anyone have that information? Not sure if this was good English, I'm from Norway :-)
I have a diagnostic tool, but the numbers don't tell me much, as long as I don't know what's right.

Have a nice day..

 

Are you asking about like if you were to use a volt meter to measure them? There's a website I've used to troubleshoot a few sensors on my 95, not sure how much would apply to your 99 though. I'll see if I can find it

Edit: Here you go

There's a ton of articles there, hopefully it'll help you out

Edit 2: just realized you might have meant what was the normal readings to expect to see from a scan tool?

 

Hi, thanks for the answer.
on my scan tool I can read live data from the sensors. temp, rpm, volts and such. But I don't know what the different sensors should show normally.

:-)

 

Yeah, kinda what I figured once I started thinking about it.

Is your truck running fine? Any trouble codes?

And is there any sensor in particular you have a question about?

 

Very good English! I know what you are asking for, but the PCM already does this for you (and it is much more efficient and particular). It is constantly monitoring all sensors and controls to ensure they are working within designed specifications. If anything is out of spec or inoperative, it turns on the SES light and sets a code specific to the problem. Then you perform the factory diagnostic chart for that particular code to diagnose the problem. The normal working range for a sensor or monitored device is usually buried in the diagnostic chart information (especially circuit description and/or diagnostic aids). You can obtain the diagnostic charts by purchasing a factory service manual or by subscription to ALLDATADIY.com or go here (some of the links no longer work but try to open images in a new window) https://blazerforum.com/forum/tech-a...agnosis-26408/ Hope this helps.

 

The car works pretty well. Probably not 100%, so I want to see if all sensors work as they should. There is one thing that is not quite good. sometimes the engine stalls/suffocate when i press down the accelerator pedal. most often from start. Maybe I should check the pressure on the fuel pump?

 

Thanks :-) I have no engine light or codes at the moment. is just curious. Fuel is expensive in norway. about 7 USD for a US gallon. Want the car to be as good as possible :-)