The engine is hard to start runs erratic . Or will not start.some engines use a crank sensor and a cam sensor. It probably will have a fault code if on newer engine, some times they will effect the fuel inj. Engine power will be effected.
What Are The Symptoms Of A Faulty Camshaft Sensor?
Speed sticks then jumps up slowly to max speed if you stop the engine some times starts working again
Have code p0340 on a 2001 frontier (replaced distributor), what else could it be?