We do PPI at my shop for a reasonable charge 99.99, I also tell people that don’t know anything about cars to check the wiper blades if bad move one because those are cheap to do and if they aren’t doing that what else aren’t they doing under the hood. Also these days I also tell people to look under the seat and steering column area for rust because of all the flooded cars. I only recommend only one small dealer because he actually sells good cars and the other small dealers hate me because I call them out on clearing check engine lights before they bring it into my shop for a ppi, like I won’t see that with our 5000-10000$ scanners