Is the car worth putting money into at this point?

What is your question?

Purchased this car 10 years ago and have maintained it well--running 216,000 miles. Put in 1800.00 of maintenance last year (new tires, 2nd timing belt, major service tuneup). Check engine light is still on after replacing the idle valve 3 years ago and the seal on the gas cap last month Codes P0456, P0519). Car will need struts replaced --mechanic says they look okay=small leaks, but getting thumping noises and rough ride. Brakes are at tolerance to pass state inspection. So I guess I am looking at a bit of a cost--like the car and what I use it for (about 400- 500 mile weekly). Should I put money into it?