[Mrwaltharris78]

I recently got my impala back after 2 years.. I have been driving it and it rides great.. But i got a code for 172 and 175 on my obd.. does anyone know how i can fix this problem and what does it exactly mean?

 

[96 Black]

Here:
https://www.impalassforum.com/vBull...00-42-tried-search-faq-but-didnt-help-me.html
More through searching and google.
EDIT: I noticed the list in the thread above does not include your codes, so here's the 1st hit with DuckDuckGo with a list that does:
https://repairpal.com/gm-obd-I-code-chart



The "1" in front of your codes designates it as "historical", and having been logged as a previous (but no longer) fault. IDK about B-bodies, but OBD1 D-bodies can clear codes through the dash. Most parts houses don't keep old OBD1 readers behind the counter anymore, so google and follow whatever procedure for clearing them (ex: buy a reader, find a business with one, .....) and see if they return.

So, your first post. Better if you get familiar with forum guidelines to get the most out of it/us. Start here and read the 2nd stickie.
https://www.impalassforum.com/vBulletin/63-new-member-introductions/

Put a location in your profile, and take the time to make out a signature line with your car's details. It'll pay off in spades with the most relevant and rewarding responses when you post issues and questions.

Welcome.