Check your Crankshaft position sensor, rotor adapter and Ign coil output. You need a bluish white color spark, not a redish orangy color one to afford good ignition. If your mechanic claims the FP relay is getting voltage to its coil and its still not picking, the coil is open.... The car should start if you manually close the FP relay contacts. If you still get no combustion when the pumps are energized, and you have at least 80 psi fuel pressure at the fuel distributor inlet, and the plugs come out wet, its an ignition problem.