my car wont start. I checked the fuel pump, its pumping gas and there is spark? on 2003 Nissan Altima

i sprayed starting fluid in throtle body still isnt starting

Asked by for the 2003 Nissan Altima
ck crankshaft position sensor this is a big problem on these you may even have a code for it. poss recall from dealer or cust assitance program
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You state you're getting fuel AND spark? need to make sure timing is correct. Also might want to check plugs to see if they've gotten fouled.