Here is a link to my OBDII live diagnostics while driving the vehicle. Still trying to figure out why the check engine light is tripping with a P0171. Any suggestions or help are greatly appreciated

 

Welcome to the forum. You will get more views if you post your question in the Trailblazer section of the forum as this is the Welcome New Members section. 😊👍

 

So sorry. I guess I have not figured out how to navigate yet.

 

The STFT is attempting to correct for a possible over fuel condition.

An incorrect MAF rdg could be telling the computer only a certain amount of air is entering the engine and the usual amount of fuel is too much and needs to be reduced.

Oxygen sensor readings would be helpful.

Problem seems to be confined to bank 1 unless no info is available for bank 2.

 

I though the oxygen sensors were in the read out around the 2 minute mark. Please correct me if I am wrong. I grew up in the 80's

 

There is no mass air flow sensor. Also I noticed yesterday when he picked me up, he came to a roundabout and slowed down quickly and it almost quit running.

 

No problem. I'll just move the thread into the Trailblazer section.