So Fix it

Disconnect the cable on the negative battery terminal with a socket wrench so that you dont accidentally start the engine. Remove the cover for the timing belt cover. Turn the crankshaft clockwise to align the timing mark on the crankshaft with the mark on the housing of the oil pump.

Place the long end of a 3mm Allen wrench into the pin hole of the timing belt tensioner. Rotate the tensioner counterclockwise with an 8mm Allen wrench until the handle of the 3mm Allen wrench slides into the hole.

Detach the timing belt from the crankshaft and camshaft. Hold the camshaft sprocket in place with a spanner wrench. Remove the mounting bolt for the camshaft sprocket and disconnect the sprocket from the camshaft.

Connect the camshaft sprocket to the camshaft and tighten the mounting bolts with a socket wrench. Turn the crankshaft sprocket clockwise to align its timing marks, then turn the crankshaft sprocket three notches counterclockwise. Turn the camshaft sprocket clockwise to align its timing marks.

Install the timing belt onto the crankshaft and continue in the counterclockwise direction. Place the timing belt on the water pump sprocket, idler pulley, camshaft sprocket and belt tensioner pulley in that order. Turn the crankshaft clockwise to take up the slack in the timing belt and align the timing marks on the crankshaft.

Remove the long handle of the 3mm Allen wrench from the pin hole in the belt tensioner to apply tension to the timing belt. Turn the crankshaft two full turns clockwise and align the timing marks. Replace the timing belt cover with a socket wrench, and connect the negative battery cable.

Remove the negative cable from the battery. Open the fuel filler cap and remove the cap for the fuel pressure port on the fuel rail. Place one end of hose C-4799-2 in a gasoline container, and attach the other end of the hose to the fuel pressure port. Allow the fuel to drain into the gasoline container. Disconnect the hose from the fuel pressure port and replace the cap on the port.

Raise the Neon with a jack and support it on jack stands. Remove the cap from the drain tube at the rear of the fuel tank. Connect one end of a siphon hose to the drain tube and place the other end into a gasoline container. Drain the fuel tank into the gasoline container. Replace the cap on the drain tube.

Press the quick-connect fittings on the fuel lines to the fuel pump module and detach the fuel lines. Tap the locking ring for the fuel pump module with a hammer and brass punch to turn the locking ring counterclockwise. Remove the locking ring and pull the fuel pump module from the fuel tank. Discard the O-rings for the fuel pump module.

Pull apart the tabs on the retainer for the pressure regulator. Pry the fuel pressure regulator from its housing with a small pry tool. Lubricate the new O-rings with engine oil and place them onto the fuel pump module. Push the new fuel pressure regulator into position on the pump module. Push the tabs on the retainer for the fuel pressure regulator over the corresponding tabs on the fuel pump module.

Install the fuel pump module into the fuel tank and place the locking ring into position on the fuel pump module. Turn the locking ring clockwise until it locks into place. Connect to the fuel lines to the fuel pump module.

Lower the vehicle and fill the tank with fuel. Fasten the filler cap for the fuel tank and connect the cable to the negative battery terminal with a socket wrench.