A flashing check engine light (CEL) means it needs to be taken to a mechanic now. Nissans have a history of sensors coming on, but a flashing sensor indicates a problem requiring immediate attention. Not sure why the car won't start, but could be a number of reasons. I had a fuel sensor go bad on my Maxima and it wouldn't start because it flooded the pistons, so I replaced that sensor. But you may have a different problem. Bottom line, have it towed to a mechanic.
check engine
The check engine light is flashing due to a problem with the emission system. I flashing check engine light usually indicates a random engine misfire.
To reset the check engine light first lift and prop up the hood of the 2002 Nissan Sentra. Then proceed to remove the negative battery cable for five seconds.
A check engine light could mean many things on a 1988 Nissan Sentra. The light could mean anything to a fuel cap not being tight enough to bad spark plugs.
change the oil filter
The 'oxygen sensor'may need to be replaced on '96 Sentra when the check engine light comes on. The should be replaced on the '96 Sentra every 100k miles for better fuel efficiency and to protect the converter.
Check with a Nissan dealer.
The computer has detected a problem with the emissions system. Have it repaired before it becomes serious.
Check the vacuum hose that feeds into the cruise module in the engine.
Make sure you have the ignition supply for the injectors. Check the starter signal input to the engine computer.
A flashing check engine light is due to a condition that is causing catalytic converter damage. Normal cause is a severe misfireA flashing check engine light is due to a condition that is causing catalytic converter damage. Normal cause is a severe misfire
check the owners manual under maintence and service, all of the sentra engines are listed with the oil capacity the engine number will have a 18 in it, that is your engine. i believe it needs 4 to 4 1/2 quarts.AnswerI have a 2002 Nissan Sentra with a 1.8L. In the owner's manual, it states the engine takes 2 7/8 quarts with a filter change. it is correct