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03 Nissan Altima showing codes P0304,P0102,P0154,P0113 what are they and how do i repair the problems.


Hi Chris.

p0304 = Number 4 Cylinder Misfire Detected

Faulty spark plug 4
Clogged or faulty fuel injector 4
Faulty ignition coil 4
Fuel injector 4 harness is open or shorted
Fuel injector 4 circuit poor electrical connection
Ignition coil 4 harness is open or shorted
Ignition coil 4 circuit poor electrical connection
Insufficient cylinder 4 compression
Incorrect fuel pressure
Intake air leak

The P0304 code means that the cylinder 4 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 4.


p0102 = Mass or Volume Air Flow Circuit Low Input

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.


p0154 = O2 Sensor Circuit No Activity Detected Sensor 1 Bank 2

Faulty Front Heated Oxygen Sensor Bank 2
Front Heated Oxygen Sensor Bank 2 harness is open or shorted
Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors
Intake air leaks may be faulty
Exhaust gas leaks

Replacing the Front Heated Oxygen Sensor Bank 2 usually takes care of the problem.


p0113 = Intake Air Temperature Sensor Circuit High

Faulty Intake Air Temperature (IAT) sensor
Dirty air filter
Intake Air Temperature (IAT) sensor harness is open or shorted
Intake Air Temperature (IAT) sensor circuit poor electrical connection

The Intake Air Temperature (IAT) sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. The sensor detects intake air temperature and transmits a signal to the Engine Control Module (ECM).The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical resistance of the thermistor decreases in response to the temperature rise. The Intake Air Temperature signal is used as an input for various systems in the vehicle.



Hope this helps
FYT

http://www.autocodes.com/make/nissan

Mar 26, 2017 | Nissan Cars & Trucks

Tip

Keeping your whole home cool with central air.


Sometimes it is difficult to keep your home cool in the hot summer months. Also, some areas of your home may still be hot where other areas are too cool. Try this method to keep your home cool evenly throughout. Before you get started make sure your furnace filter is new. This will allow for maximum air flow.

If your living space is a single floor plan:

  1. Turn the air conditioning on
  2. Switch the furnace fan from auto to on.
  3. Measure the temperature in each room.
  4. Close the vents by about half in the cooler rooms
  5. This will force more cool air into the warmer rooms.
  6. Keep adjusting the vents until all the rooms have the same temp.

If your living space is on more than one level:

  1. Turn on the air conditioning.
  2. Switch the furnace fan from auto to on.
  3. On the lowest level of the house close half of the vents that are the closest to the stairs.
  4. This will force more cool air to the top floor where it is usually hotter.
  5. Cool air will sink from the upper floors which will keep the area near the stairs cool.
  6. Measure the temperature in all the rooms.
  7. Keep adjusting the vents until you have a nice even temperature throughout the house.
I found that leaving the furnace fan on all the time will keep your home evenly cool and comfortable. You may have to replace your furnace filter once a month due to the increased air flow. It will be well worth it in a cooler, more comfortable, and more energy efficient home.

Take Care,

Eric

on Aug 09, 2010 | Heating & Cooling

1 Answer

Having problems with climate control. Temp setting does not come back on to the last setting it always comes back on at 75. Also when pushing the front defrost it doesn't blow air.


You may want to have it check for DTC'S diagnostic trouble codes . A code may point to the problem , these HVAC systems are very complex .
DTC B0248, B0268, B0408, B0418, B0428, or B3531
The HVAC door actuator is an electronic motor with a feedback potentiometer. The HVAC control module supplies power and ground to the actuator. The HVAC control module controls the direction of the actuator by changing the polarity of the control circuit. When the actuator reaches the desired position, voltage is removed from the control circuit. The HVAC control module determines the current position of the actuator by monitoring the feedback voltage of the door position signal circuit. The feedback potentiometer position is a function of the actuator position.
• Air flow control 3 circuit refers to the front mode actuator
• Air flow control 7 circuit refers to the recirc actuator.
• Temperature control 1 circuit refers to the driver air temperature actuator
• Temperature control 2 circuit refers to the passenger air temperature actuator
• Temperature control 3 circuit refers to the rear air temperature actuator
• Air flow control 10 circuit refers to the rear mode actuator
DTC Descriptors
This diagnostic procedure supports the following DTCs:
• DTC B0248 Air Flow Control 3 Circuit
• DTC B0268 Air Flow Control 7 Circuit
• DTC B0408 Temperature Control 1 Circuit
• DTC B0418 Temperature Control 2 Circuit
• DTC B0428 Temperature Control 3 Circuit
• DTC B3531 Air Flow Control 10 Circuit

Your having air flow issues and temp. control !
DTC B0413, B0423, B0433, B3761, B3773, or B3782
This diagnostic procedure supports the following DTCs:
• DTC B0413 Temperature Control 1 Feedback Circuit
• DTC B0423 Temperature Control 2 Feedback Circuit
• DTC B0433 Temperature Control 3 Feedback Circuit
• DTC B3761 Air Flow Control 3 Feedback Circuit
• DTC B3773 Air Flow Control 7 Feedback Circuit
• DTC B3782 Air Flow Control 10 Feedback Circuit

Do you know what a scan tool is ?
Install a scan tool.
Turn ON the ignition, with the engine OFF.
With a scan tool, command the appropriate actuator in both directions.
Does the actual parameter of the appropriate actuator change?

Jan 10, 2017 | 2005 Cadillac STS

1 Answer

Where is the intake air temperature sensor located at on a 2008 ford escape xlt v6? Trying to replace can't find it?


Intake Air Temperature Sensor

Print
Specific to:
Ford Escape 2005-2008

The Intake Air Temperature (IAT) sensor is incorporated in the Mass Air Flow assembly. Refer to the Mass Air Flow (MAF) sensor.Here's a link to the mass air flow sensor.
GET 35 GIFT CARD FOR EVERY 100 SPENT ON ONLINE SHIP TO HOME ORDERS

Jul 21, 2015 | Ford Cars & Trucks

1 Answer

How can I take away the temperature that this air conditioning unit produces?


This is how functions. Within the back again or even part of the device, there is certainly an additional coil the fonder coils. Air flow is actually attracted through the dirt filtration system, through the actual fonder coils in to the fonder enthusiast as well as leaves you're the top of the device. This really is air flow utilized to awesome the environment moisturizing hair product. Overview: The front of the device is actually an air flow within as well as air flow in order to awesome the area. The rear is actually an air flow within as well as air flow in order to awesome the device. To disregard the heat produced by the AC you will important to use the exhaust convertor.

Oct 04, 2014 | Heating & Cooling

1 Answer

Replaced emissionpvc valves ,evaporator canister ,evaporator solenoid , throttle sensor leak detector for bad flow, still didn't erase p0114,so changed throttle sensor and map sensor now have p0113 h


  • Defective Intake Air Temperature Sensor
  • Dirty air filter
  • Defective Mass Air Flow Sensor
  • Faulty or corroded Intake Air Temperature Sensor wiring or connections

Mar 31, 2014 | 2004 Dodge Durango

1 Answer

Service engine light soon.CodeP0101


Here is the meaning of the code.

P0101 GMC Description The Mass Air Flow (MAF) sensor is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot film that is supplied with electric current from the Engine Control Module (ECM).

The temperature of the hot film is controlled by the ECM acertain amount. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot film as air flow increases. The ECM detects the air flow by means of this current change.
Read more: http://engine-codes.com/p0101_gmc.html#ixzz22j2iAwpz

Aug 05, 2012 | GMC Envoy Cars & Trucks

1 Answer

P0101


Here is the definition of the code.

P0101 GMC Description The Mass Air Flow (MAF) sensor is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot film that is supplied with electric current from the Engine Control Module (ECM).

The temperature of the hot film is controlled by the ECM acertain amount. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot film as air flow increases. The ECM detects the air flow by means of this current change.
Faulty mass air flow sensor
- Intake air leaks
- Dirty mass air flow sensor
- Dirty air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor electrical circuit poor connection
Read more: http://engine-codes.com/p0101_gmc.html#ixzz223ibNx6t

Read more: http://engine-codes.com/p0101_gmc.html#ixzz223i9HR3J

Jul 29, 2012 | 2002 GMC Safari

1 Answer

Check engine lght on and 2 codes p0103 and p0112


P0103 HYUNDAI - Mass or Volume Air Flow Circuit High InputPossible causes- Dirty mass air flow sensor
- Dirty mass air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor electrical circuit poor connection
- Intake air leaks
- Faulty mass air flow sensor
Tech notesBefore 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.
P0112 HYUNDAI - Intake Air Temperature Sensor 1 Circuit Low InputPossible causes- Dirty air filter
- Intake air temperature (IAT) sensor harness is open or shorted
- Intake air temperature (IAT) sensor electrical circuit poor connection
- Faulty intake air temperature sensor
When is the code detected?An excessively low voltage from the sensor is sent to ECM.

Jun 08, 2012 | 2001 Hyundai Accent

1 Answer

Air flow meter


air flow meters are expensive i would first replace the coolant temperature sensor

May 28, 2009 | 1996 BMW 318

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