My car drinks fuel like crazy... it's a '89 GTA stock 350TPI snd I get 24litres/100km in town....

I really need an expensive autotap scanner? my car is not even OBDI....
I can use a cheaper scanner?
I suspect first the O2 sensor, next the temperature sensor and next the thermostat.... I don't think that I should start changing parts like hell.....

Thanks for any feedback!!

 

well I'm like the cheapest person in the world, and I broked down and bought a auto xray, it was like 150 or something like that, and its payed for it self, If you were to take your car the dealer they would charge you 80 bucks just to hook it up to their computer. And if you plan to keep the car it would be a very wise, to get one. Cause lets face it our cars do break every once in awhile.