20 Most Recent 2003 Nissan Sentra - Page 9 Questions & Answers

the mas air flow sensor u need to put it on scanner not to check codes but see whats going on with all the sensors your fav garage if your a good customer it maybe be free if not no more then 20 bucks if u scan it u will b chasing your tail good luck

error p1446 is a closed control valve on evap .. that is located behind the tire on the drivers side .. you can sometimes clean that .. that can also be caused by a bad or loose gas cap ..

code p1456 means a small evap. leak .. there is a smoke test to help find the leak if you have trouble ..

P0650 Malfunction Indicator Lamp (MIL) Control Circuit Malfunction (computer)

trace the wires from the bulb connector to the switch. You will probably run into the relay box under the hood. remove the relay and tap it gently then reconnect it. See if it made any difference. If not , check the voltage at the relay by touching the leads to negative and positive. If it has none replace the relay. If there is voltage, then check the voltage at the switch using the color codedd wires you traced there.

It could be a number of things. Have you tried to run any codes yet?

If the engine has overheated, chances are pretty good that you now have a warped or cracked cylinder head and a blown head gasket. Those engines are very unforgiving when it comes to being overheated.

it is behind the coin box just pop it out and you can see the fuses

You got a tank of bad gas. You need to drain the tank and refill with good gas. If that doesn't resolve issue you need to check fuel pressure to see if the fuel pump gave up on you.

could be a bad thermostat. or a clog in coolant system.

Yes, it can be located on the drivers side near the in front of the rear wheel well. line most cases it is easily seen by just a quick peek, however on most Nissans it can often be up under the chassis closer to the fueling side of the vehicle.

The crank sensor may be at fault.