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Nathan, Nissan Technician
Category: Nissan
Satisfied Customers: 738
Experience:  17+ sole Nissan Experience, Master ASE and Master Nissan trained.
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Im working on a 2000 Nissan Altima, it cranks but wont start,

Resolved Question:

I’m working on a 2000 Nissan Altima, it cranks but wont start, no spark.
Changed the:
          Crank sensor
          Distributor complete
          The ECU
Same problem, tried the spare key, same ting.
Originally car with start than stall out after about 15-20 minutes of running but the running time got sorter after every test drive. Finely it only started and ran for 10 to 15 seconds than stall and not restart for 3 to 4 hoers later only to rune for 10 seconds.
Now it wont start and the check engine light is not coming on at ignition 2nd position.

I would appreciate any suggestions

Submitted: 8 years ago.
Category: Nissan
Expert:  Nathan replied 8 years ago.
The 2000 Altima uses a chip key system that requires reprogramming every time the keys ,ECM or key antenna is changed. If you replaced the ecm without having them programmed then the vehicle will never start. This can be confirmed if you watch the security light while cranking the vehicle. If the light is on solid or turns on and stays solid the keys are not programmed. If this is the case the vehicle and all of your keys will need to brought to the dealer to have them programmed.
Incidentally ECM's in the 2000 Altima rarely fails. As for the loss of the check engine light when the key is at the on position, double check all your fuses and make sure the ecm connector is fully seated. Also if you bought a aftermarket ecm you should be aware that they often have faults, Stick with factory electrical parts always.
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