Greetings Eviltwin, checkout my previous post concerning a cheap but permanent quick fix for air injection pump bushings....
Also, almost everyone has an old desktop around. IF not, someone will give you one if you just ask around. Dig it out, clear everything off of the hard drive except the os and use it with obd2 software to scan codes. You can even use it in a moving car with a dc to ac converter and someone else driving.
Good luck, Walt