How do i replace a crankshaft senser on a 1998 mozda protege

Top drivers side of transm.bell housing

the repair is either done incorrectly, or you have a cracked head or damaged engine block from an overheating event-You should be able to determine where the issue is by pressurizing the cooling system with a pump, checking for leakage in the head or cylinders

sounds like timing did you remove front engine cover at all?
if so turn the crankshaft sprocket 180 degrees inst5all it on the other keyway....
hope this helps, i only know cause i did the same thing before
good luck my friend

sounds like the crankshaft sensor either came loose or went bad - sometimes new parts go bad/defective

The anti thieft system is keeping it from running.

Replace the transmission speed senser in the transmission.

You likely need a set of brushes put in the stater,when they are almost worn out you will get an intermittent start condition that boosting won't help.

check fuel, sparks,engine pressure.
if no sparks check the crankshaft & camshaft sensor
if no fuel replace fuel pump
if no pressure remove cylinderhead you may find
cylinder gasket damage , valve bent, piston rings need to be replaced
good luck

You might want to check the crankshaft and camshaft sensers, there has been issues with the factory ones over heating and shorting out.With out the sensers the engine wont run.But remember you need to replace both crankshaft and camshaft. F.Y.I the camshaft and crankshaft are the same so dont worry about getting them mixed up.

check out rdtiburon.com forums been a great help for me