2005 Nissan Sentra - all of a sudden from out of no where I came out of the grocery store and the ignition turns but does not start! My check engine light comes on and off and has for the last yr and half but I took it in 6 mo ago and the fixed the sensor and replaced the fuel injection system. No problems since til today. The battery is good and the alternator belts are running smoothly. What could it be? FYI small pin leak in power steering but they said it was too small to do anything with it and that the car was fine.

Part 1 -How to Test the Ignition COP Coils (Nissan 1.8L)

troubleshootmyvehicle.com > Nissan > 1.8L

Feb 12, 2013 - What Tools Do I Need to Test the COP Coils. ... coils (most commonly known as the COP ignition coils), on your 1.8L Nissan Sentra is pretty easy. ... When one COP ignition coil fails... that cylinder goes 'dead' due to a lack of Spark and is said to be misfiring. .... 2000, 2001, 2002, 2003, 2004, 2005, 2006 ...

Part 2 -How to Troubleshoot a No Start (Nissan 1.8L)

troubleshootmyvehicle.com > Nissan > 1.8L

Jan 17, 2013 - Checking for Spark With a Spark Tester. ... Your 1.8L Nissan will either have a distributor-type ignition system or the more modern COP ... A BAD fuel pumpwill cause your 1.8L Nissan Sentra to Crank but Not Start... since the ... Still, the other method that I've used to test for a lack of fuel... is spraying starting ...

2002 Sentra 1.8, no spark, code 0505... - Nissan Sentra Forum ...

www.b15sentra.net > ... > Technical Discussion

Nov 4, 2008 - 15 posts - ‎3 authors
I have never had a problem with the car before (02 Sentra 1.8/auto), so I had no need to post ... Originally Posted by Black B15 ... Join Date: Jun 2005 ... Can you see if the coilpacks are getting spark & work back from there? how many spark plugs do i need ? - Nissan Sentra ...
7 posts
Mar 19, 2010
Spark Plug Replacement - 2002 GXE 1.8L - Nissan ...
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1.8s starting problems - Nissan Sentra Forum - B15 ...
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No start on 1.8L 02 GXE - Nissan Sentra Forum - B15 ...
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Apr 11, 2009
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Have a fuel pressure leak down test performed, the check valve in the fuel pump may have failed and this causes longer cranking times.

Pull off one of the plug wires and put a screwdriver in it, crank the engine and see if it is getting a spark. If so, pull off one of the fuel lines feeding the engine and check fuel pressure. If you are not getting fire, possible causes are: crankshaft sensor, ignition module, other causes I could determine after these are checked. Try to check these and if you need further help, I will help you as much as I can. If you are getting spark, and fuel, the main cause would be timing. Hope this helps

One common problem with Nissan is ignition coils. Your symptoms would relate to that.

Check the Mass airflo sensor, Mine went out and did not start. Check engine light shows air intake

How To How to Reset the Computer on a Nissan Sentra When the check engine light illuminates on the dash in a Nissan
Sentra, it is an indication that the computer has recognized a problem within its sphere of influence. Once the problem has been addressed and corrective action completed, the computer can be reset by erasing the existing codes.
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Instructions Things You'll Need:

• Code scanner

1. Step 1 Insert the code scanner's connector into the OBD port located under the dash to the right of the steering column.
   
2. Step 2 Turn the ignition key to the run position. Make sure the engine is off.
   
3. Step 3 Press the button for "Read" on the code scanner. Within less than 1 minute, the scanner will display all failure codes that are stored in its memory.
   
4. Step 4 Write down the failure codes displayed by the scanner. Cross-reference the codes with the code sheet that comes with the scanner. The codes are displayed with a letter followed by a four-digit number code. Deciphering these codes by cross-referencing them with the code sheet offers an explanation of the failure.
   
5. Step 5 Turn the key off. Correct the failure so that the computer can be reset.
   
6. Step 6 Turn the ignition key on, keeping the engine off. Press the "Erase" button on the scanner. Start the vehicle and allow it to run for 5 minutes. Watch for the check engine light to come back on. If it does, the problem has not been corrected. If it stays off, the problem has been successfully resolved.
   

Get the engine light scanned to see what the error is, it all may be related.

You shouldnt be changing your plugs that often. You probably have a short with your service light. Have an electrician check it out.

try puting shifter in nuetral , common nissan problem

IM HAVIN THE SAME PROBLEM...I THINK ITS THE MASS AIR SENSOR