Help with sensors

[roncole]

Help. I have a 2010 meriva 1.4 petrol about 4 weeks ago it went into limp mode. I connected it to the diagnostic computer and it said cam sensor faulty. I replaced it and it was fine for 4 days then it went again. I turned out it had 2 sensors and I replaced the 2nd one. All fine for a week then it went again saying the crankshaft sensor was faulty so it was replaced and the car ran lovely for a week but today it went again saying the crank sensor and cam sensors are faulty. My wife needs the car for work and I need it for my chemo treatment visits. Any ideals out there. Pensioner.