Getting P0340 code: I have a 2000 ford escort zx2 with the 2.0 liter zetec with 78k miles on it. This car is all original from factory (mexico) and never had any work done on motor. I noticed the drive belt was cracking so I called a mobile mechanic to fix it. He told me it would be a good idea to also change the timing belt at the same time (he said they need changed at 80k..I saw on the manual that came with belt later it said 120k) anyway, I agreed based on his recommendation. He came out and did the job in 2 hours but I noticed he never took off the valve cover. He simply put a white mark on one cam sprocket and then the other cam sprocket to mark their positions, took off belt, turned the crank until the woodruff key on crank was straight up , aligned white marks on cams then slipped on the belt and buttoned everything up. It started right away then ran rough and died. started right away again then seem to run better. he revved up the engine and it didn't fall on its face, then he said ok that's good shut it off. When I questioned it dying he said "sometimes they do that after this kind of work" After he left I pulled the car out of the garage and turned it around to put back in garage..during this the car died 4 times. I also noticed the service engine soon light on. Before this work the car never had any engine issues or dying like this in the 15 years I've owned the car. I called him and he said well maybe I didn't have the cam sensor on when we first started it. he recommended I take off the negative battery cable, run a jumper wire to the positive for 10-15 minutes to drain the capacitors on the computer then see if that helped. It did not help. He said he would come back and fix it for free. This time he says he will take off the valve cover and lock down the cams, take spark plug out, turn crank until #1 cylinder is at TDC and make sure its right this time. I hope someone who really knows this engine will reply and tell me the main things he needs to do or keep in mind to get this right so I can make sure he does them and be done with this fiasco. Thanks in advanced. Also I read here https://www.fixya.com/cars/t5597136-2_litre_ford_timing_belt_diagram_2000 and also some posts on this forum that my engine is a non interference engine, I hope that is true. Also worst case scenario and I have to take it to ford (10 miles away) can I drive it there or will I risk messing up my motor ? Thanks again for any help on this.