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Re: 2003 maxima will not start
Your Throttle Body Sensor works to sense the position of the accelerator. It could be bad. It there has been recent work done on the car check to ensure that there are not any loose connections at the throttle body. If a lose connection is found unplug the batery for over 2 minutes. Fix the connection and then hook the batery back up. Best of luck.
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ok lets start with the codes they say your getting. P??? which 1's and how many. there are few o2 sensors, are they next to the Exhaust next to the converter? MASS AIR FLOW -MAF use this, for now i am guessing, until i see the correct codes your are getting. this could be the 1 you may have below, please read it........
Faulty mass air flow sensor
- Intake air leaks
- Dirty mass air flow sensor
- Dirty mass air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor circuit poor electrical connection
Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor.
possible symptoms Engine Light ON (or Service Engine Soon Warning Light)
- Engine stall
- Engine running rough
- Excessive fuel consumption
- Excessive smoke
the code is generated when An excessively high voltage from the sensor is sent to Engine Control Module (ECM).
There is a switch in the airflow meter that keeps the fuel pump relay closed as long as there is airflow. With the meter unplugged, the pump should not run except when the key is turned to start. It would seem to me that you have a wiring issue. Try jumping the fuel pump relay so the pump runs whenever the key is on. (Remove the relay and jump the pump wire to the accessory wire--see top left diagram.) This defeats the safety feature but will keep the pump running.
well if u have a 1983 ford tarus that has made it this long congrats... start by cleaning the mass air flow meter with mass air flow cleaner anything else will damage the electronics inside.. if it has had all the basics checked ie: plugs cap rotor fuel pressure then consider the coolant temp sensor.. if it reads different then actual temp it can cause cars computer to send wrong amount of fuel to air ratio..
This is usually the first (cheapest) place to start. The MAF (mass air flow) meter is designed to sense and adjust the vehicle engine to changes in air temperature, speed, density etc. to keep your vehicle running properly. Since you already had your EGR replaced (yet another possible source of this sort of problem) I would tend to lean more toward the MAF. If you run any sort of aftermarket intake such as a k&n etc. these can cause problems for certain vehicles that are very sensitive to air flow as Saabs tend to be. Also the oil used on filter elements such as k&n can ruin the sensitive MAF. This unit is generally easy to fix (it's the little box with wires running to it) mid way up your air intake tube just past the filter. They aren't too terribly expensive either. Try this and hopefully this gets you up and running.
Fuel filter is inside the gas tank and its built into the fuel pump housing. You need to remove the back seat and get into the tank via access hole under the seat. Than you need to "split" the fuel pump assembly open and get the filter out. Reverse procedure to assemble. Those filters are rated for 105k miles. My 00 Maxima has 167K on it and it runs just fine with the original. As far as the air flow meter , its a pretty common part that fails and that's why 00 Max air flow meter costs only $100 and all others $500 or more. If you replace an air flow meter, make sure that you use a "NISSAN" air filter or YOU WILL BE replacing the air flow meter AGAIN. Also with the new air flow meter the cars ECM/Computer needs to be reprogrammed. As far as plenum gaskets leaking?? unless someone had it apart and didnt put it back together the right way, its "VERY UNLIKELY" for those gaskets to be bad. Totally bullet proof.