75SV1 said:
Your engine still has a cam sensor in place of the distributor. It may not be funtioning. I think its only function is to make sure the cam and oil pump are working.
You've got a crank position sensor that precisely measure what position the crank is at, to fire spark plugs and open injectors to squirt in gas.
BUT, its a 4 cycle engine, and it take 2 rotations of the crank to go thru all the cycles. So the PCM has to fire that spark plug and injector every other rotation of the crank, not every rotation of the crank.
Thats where the
cam position sensor comes in, it tells the PCM what postion the valves are at, so that PCM can decide if its this rotation of the crank to fire spark plug/injector, or the next rotation.
Sometimes when the Cam Position Sensor Fails, the PCM will just guess, its a 50/50 shot, and the motor may start up fine or not at all or will start but run horribley with lots of misses. Depends on the ignition, if the ignition shares a coil for every 2 spark plugs, it fires the plugs on each crank rotation, the plugs that share are coil so that thier fire sequence is such that one plug fires when it shoulds and the other fires during the exhaust sequence when it doesn't hurt. In this type of ignition, the PCM guessing 180° out, still will give you the right spark plug firing, just the wrong injector firing, which the fuel will still stay in the intake manifold waiting to be sucked in, that why it can run, but it will run really bad.
This does not sound like a cam position problem to me, nor a sensor problem.
The motor quite in a moment, and now acts like it is siezed.
Hopefully its a bad starter motor, that shorted and killed the electric supply that caused the motor stalled, and thus won't crank. With the plugs removed and the car in neutral or park, a wrench on the bolt at the end of the crank should be easy to crank over by hand, if you can't do that, then it probably isn't the starter, unless the starter is siezed into the start gears.
Hate to say it, if its not that, the oil pump could have failed and siezed the motor, or something internal failed and is locking the motor. A broken timing chain, is the motor interference fit? Hydro Lock? You didn't drive thru a lot of water when this happened? Pulling the plugs would have let the water out and it would have cranked though.
Have you checked for PCM fault codes? Changed the oil and inpsected the oil for metal particles?