I have 1993 Mitsubishi Expo LRV. The car was not running for 5-6 months. Changed the Spark plugs and the wires from distributors to spark plugs. Cleaned the air flow switch. It started and I was able to run the car for 2-3 miles. Now it does not start. The tank still has the old fuel which is 6 months old. I have added 1 gallon of new gas, thinking it was low on fuel. What do u think the problem could be. I opened the gas line that connects to fuel injector. Gave the car a one second start, the fuel was shooting out ok. So to me the gas pump and the fuel filter are ok. Oh right after I connected the pipe to fuel injector and tied the nuts, the car started but it was running rough, few sec later the engine died again and wont start.