I was told that i need a crank sensor...is that hard to replace or is it something i can do?

You don't have to replace it with a new one but you do need to place your old one back on, as it needs to be removed to replace your crank angle sensor.

crank sensor sits on the side ( or back of the engine) above the sump pan. you not said model or car so it cold be any were along from there at the back or side and some on the front of the engine near to the bottom pulley it will have a thick cable on it not hard to miss.

engine check light should be on
check theses things
engine timing
idle control valve
TPS
crank angle sensor

Now that a mechanic, I assume tested your car & told
you what was needed,why are you here?

well i dont know what year is but the crank position sensor is locate it behind crank pulley in order to have acces to the sensor you ne to remove the pulley first. Note when the crank sensor is bad there should be no fire at your sparks. before keep spending more money dont know if you checked for gas coming to the engine.

Code p1345 is the crankshaft variation learn.You need to get the crankshaft variation learn done for the code to clear.You will need a scan tool.This should take care of the check engine light.Hope this helps.Good luck.

Hello there, Sounds a bit pricey to me. As far as the fuel injection and throttle body services these are done for maintenance reasons, I am sure it is something you can do when it fits your budget.

Now as far as the cam and crank sensor if there is a problem with one of these sensors you will have a drivablity problem such as hard starting and a lot of times shutting down after the car warms up.

If your not experiencing any driveability problems with your vehicle I would suggest having the computer resset and see if your light comes back on or if they were false codes.

Good luck and I hope this helps you, Allen

the sensor is not to hard to change takes an experienced mechanic a little less tan an hour if it does not brake. it really doesn't hurt your car to run with a faulty sensor but if the sensor competly craps out your car probably won't start i would get it repaired if i were you so your not stranded some where.

belt tensioner is not doing its job!! but with out looking at it is hard to tell. i f the crank pulley is not bent or harmed, it is probably the tensioner.

Yes, cam sensor can cause a hard starting condition, but not that common on a 2000 maxima. I haven't replaced single one on a 2000 Max and I have one also (maxima that is) . Never had any problem with cam or crank sensors. I think that your problem is somewhere else, like IAC valve circuit. Just a tip. Its kinda hard to diagnose something over the computer, without Consult2 (Nissan scanner) beeing hooked up to the car and seeing what the car is doing while cranking for my self.