Question about 2006 Nissan Pathfinder

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Wires Hello, I am tring to find out which wire(s) go from my mass air senser to the ECU or computer. If I am not mistaken there are 5 wires on the senser. I have an 06' nissan pathfinder. -Chris

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  • Nissan Master
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What is the problem with the truck?? let me know.

Posted on Aug 31, 2008

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Map senser ware is it no my car


It's called a MAF sensor. You can clean the short heated wires inside with a can of spray carb cleaner. Do not touch the wires. They get coatedwith varnish and make the car hesitate. Sometimes turns on CEL light, DTC codes P0171 or 74.

4 nuts hold the housing on.

Mass Air Flow (MAF) Sensor The mass air flow sensor (MAF sensor) (12B579) :
  • is located between the engine air cleaner (ACL) (9600) and the throttle body (9E926) .
  • uses a hot wire sensing element to measure the amount of air entering the engine. Air passing over the hot wire causes it to cool.
  • sends an analog voltage signal to the powertrain control module (PCM) (12A650) to determine the intake air mass. The powertrain control module will then calculate the required fuel injector pulse width in order to provide the desired air/fuel ratio.
The mass air flow sensor hot wire sensing element and housing are calibrated as a unit and must be serviced as a complete assembly.

Jul 02, 2011 | 1998 Ford Taurus

1 Answer

Why does the car do bad on gas?


Several things that cause poor gas milege! Bad thermostat,temperature sensor,MAP SENSER,OXYGEN SENSOR ,MASS FLOW AIR SENSOR,PLUGGED CONVERTER,FAULTY COMPUTER,CHECK IGNITION TIMING.
lOW TIRE PRESSURES. VACUM LEAKS,TO MAP SENSOR FUEL PRESSURE REGULATOR ,AND INTAKE MANIFOLD,PLUGS MISS FIREING BAD WIRES,DIRTY, WORN OUT SPARK PLUGS .

Sep 09, 2010 | 1996 Chevrolet Monte Carlo

1 Answer

WHERE IS THE MAP SENSER MANIFOLD ABSALUTE PRESSURE SENSER ON A 92 BUICK PARK AVENUE


You have a mass air flow sensor in between air intake hose and throttle body. ( round cylinder with wire connection.) Don't believe there is a MAP sensor on that model/year. Call to parts store, should verify that.

Dec 31, 2009 | 1992 Buick Park Avenue

1 Answer

Where is mass air flow senser on a 1989 buick regal


Hi

Thanks for using FixYa. The BUICK Regal Mass Air Flow sensor is usually installed in the intake air duct between the air filter and the throttle body mounted on the intake manifold. Also check the throttle body for mass air flow sensors location.
On mass air flow sensors with a sense wire, this wire can become contaminated with dust particles. These particles can be removed with automotive solvents that are safe for the use on mass air flow sensors. Before replacing the mass air flow sensor check for air leaks in the connecting air ducts and intake manifold. These leaks can cause similar symptoms as a malfunctioning mass air flow sensor.

Bad or contaminated BUICK Regal Mass Air Flow sensor can possibly cause a wide range of various vehicle drivability problems such as stalling, especially when the engine is cold, misfiring, poor acceleration, etc. In addition, a problem with the Mass Air Flow sensor often causes the "check engine" or "service engine soon" light in the vehicle instrument panel to illuminate.

Please do accept the solution if the issue is resolved or else revert for further assistance.

Thanks
Rylee

Nov 09, 2009 | 1989 Buick Regal

1 Answer

What color is the intale air temp sensor wire on a 2002 Mitsubishi Eclipse GT, 3.0L V6, 5spd manual?


There are two wires for the intake air temperature sensor.

The sensor is built into the Mass Air Flow sensor near your air filter.

Pins 5 and 6 (wire colors brown and red/blue respectively) of the MAF connector are for the air temp sensor; Pin 6 is the 5V reference voltage from the ecu, pin 5 is the return signal (ecu input).

Sep 09, 2009 | 2002 Mitsubishi Eclipse

1 Answer

My car stoped running need help


dear friend-you went threw extreem measures and no joy,i think you must now change the crank angle sensor and have the ECU tested.i believe that will solve your problem.

Jul 28, 2009 | 2000 Hyundai Accent

1 Answer

2000 Boniville bucks like a horse and trys to stall


that could be it. but it could be the timing too i think.. if you run the car and its hot when it starts to buck and stalls.. the rubber belt could be getting warm and expandig and causing it to slip out of timming just a hair.. then you let it set and cool down the belt then re-cools and runs fine. that or it could be just simple needing new wires and plugs. if they are mis firing and then the plug misfires completely it will cause the car to buck and stall out.. i personally would check wires and plugs then the distributor block make sure there are no mis firing there also.

Jun 28, 2009 | 2000 Pontiac Bonneville

2 Answers

Checking the fault codes


Yes.  Next to the ash tray there is a black slide off plate that reveals the OBD I plug.  {1996 and newer can be read with an OBD II reader (read for free at Advance auto or Auto Zone)}  Once you reveal this plug on the 1995, you can plug in a single jumper wire (or even a paper clip) in the #4 and #15 pin hole.  There are two rows of pin holes, count from the upper right to the #4, then on to #15 (which will be the second to last pin hole).  Turn the ignition switch on (motor not running), insert the jumper wire for about 3 to 5 seconds, then remove the wire.  The ENGINE LIGHT will flash a hold, then the code, which will go something like this, flash, flash, PAUSE, flash, flash, PAUSE, flash, PAUSE, flash, flash, flash, flash.  Then it will repeat the codes if you just sit there and observe it.  The code in my example would be a 2214 code.
Below are some code I found on a website.  I hope this helps.  Now I ask that you take the time to answer someone elses question.  Lets all share.  Good luck, "Peace through power and knowledge"

CODE FAULT
0000 End of fault sequence
1111 Bad ground to Electronic Control Unit (ECU) or ECU failure-check grounds or replace
ECU
1119 Transmission Range - Defective wiring. Check for break or short.
1213 Vehicle Speed Sensor (VSS) - Check transmission speed sender wiring and the wiring of
the instrument cluster
1231 Vehicle Speed Sensor (VSS) (G54) - Check transmission speed sender wiring and the
wiring of the instrument cluster
1232 Throttle Position Actuator - Check defective actuator or wiring for break or short.
2111 Engine speed sender. (RPM)
2112 Ignition reference sender
2113 Hall sender - No speed signal from distributor; check Hall sensor and circuits or the
Air-flow sensor plate is not moving freely; adjust potentiometer or lever.
2114 Hall sender not on reference point or distributor out of position.
2121 Idle switch - check switch & circuit.
2122 Hall sender - Check wiring for break or short.
2123 Full throttle switch; check switch & circuit.
2132 Electronic Control Module (ECM) - No ignition to injection signal.
2141 Knock sensor 1 control at maximum ****** - test compression, change octane, adjust
timing, check knock-sensor wires.
2142 Knock sensor 1 signal - Test sensor, check wiring for break or short.
2143 Knock sensor 2 control at maximum ****** - test compression, change octane, adjust
timing, check knock-sensor wires.
2144 Knock sensor 2 signal; test sensor.
2212 Throttle Potentiometer - Value out of range.
2214 RPM Signal - Idle speed to high or engine over-revved
2221 Vacuum Control - No vacuum to control unit. Check for leaks.
2222 Manifold Vacuum - Check vacuum line and wastegate for leaks.
Pressure sensor - Sensor defective
2223 Altitude Sensor - Check sensor, check wiring for break or short.
2224 Turbo/Manifold pressure - Check turbo control wiring, check for over boost, air leak,
defective wastegate valve, vacuum leak or defective pressure sensor.
2231 Idle-speed stabilizer adjustment limits exceeded; too-fast idle. Adjust throttle for full
closing, check for vacuum leak, check ignition timing.
Or
Air Mass Sensor - Check sensor and wiring.
2232 Air mass/flow sensor - No signal. Check wiring for break or short.
2233 Air mass/flow sensor reference voltage open or short circuit
2234 ECM Supply voltage low.
2242 CO-potentiometer voltage low
2312 Coolant temperature sensor - Check wiring, check resistance.
2314 Transmission to Engine control module circuit. - Check wires for breaks or shorts.
2322 Intake Air Temperature Sensor - Check sensor and wiring.
2323 Mass Airflow Sensor - Check sensor and wiring for breaks.
2324 Mass Airflow Sensor - Check sensor and wiring for breaks or shorts to B+ or ground or
check for air leak.
2331 Oxygen Sensor Control - Out of range. - Check ignition, air intake for leaks and injectors.
2332 Oxygen Sensor - Bank 2 - Check wiring for breaks or shorts.
2341 Oxygen sensor (O2) at control limit; check CO, lambda-sensor wire, lambda-sensor
control, start valve, evaporative system and check for vacuum leaks.
2342 Oxygen Sensor Control - no signal - Check wiring, sensor.
2343 Rich limit; the pressure regulator has exceeded +10 mA for more than 5 minutes,
closed-loop; check for vacuum leaks.
2344 Lean limit; the pressure actuator has exceeded -5mA for more than 5 minutes, closed
loop; check idle.
2411 EGR System Malfunction
2412 Intake Air Temperature Sensor - Check sensor and wiring for breaks or shorts
2413 Mixture Control - Running rich
Fuel pressure too low
3424 Malfunction Indicator Lamp (MIL) failure - Check lamp and wiring.
4311 Secondary Air Injection Pump Relay - Check relay and wiring.
4312 EGR Frequency Valve
4313 Secondary Air Injection Solenoid Valve - Check valve and wiring.
4331 EVAP Carbon Canister Solenoid Purge Valve 2
4332 Ignition Circuit Final Stage - Check for break or short to ground or B+ or bad ECM.
4343 EVAP Carbon Canister Solenoid Purge Valve 1
4411 Fuel Injector Cylinder 1 or 1 & 5
4412 Fuel Injector Cylinder 2 or 2 & 7
4413 Fuel Injector Cylinder 3 or 3 & 6
4414 Fuel Injector Cylinder 4 or 4 & 8
4421 Fuel Injector Cylinder 5
4422 Fuel Injector Cylinder 6
4423 Fuel Injector Cylinder 7
4424 Fuel Injector Cylinder 8
4431 Idle Air Control Valve / Idle Stabilizer - Check valve and wiring.
4433 Fuel Pump Relay
4442 Wastegate - Defective frequency valve or wiring.
Boost pressure circuit - Check for short.
4443 EVAP Canister purge valve.
4444 No fault in system.

Oct 17, 2008 | 1995 Volkswagen Jetta

1 Answer

1989 jaguar xjs v12 fuel mixture


Chances are the coolant temperature sensor or its wiring have failed, or the vacuum line to the MAP sensor is leaky or broken (I believe the V12 in '89 guise uses MAP sensors). The MAP sensor measures Manifold Absolute Pressure. Along with this pressure the ECU looks at engine RPM. It also measures air temperature. Knowing pressure and temperature we know density, and knowing engine speed tells us how much volume of air is going through the engine. All of this together is computed into air mass and is used to calculate how much fuel mass should be admitted. If the vacuum line is broken, the ECU reads less vacuum and produces rich mixture thinking that the engine is under high load.

Aug 03, 2008 | 1986 Jaguar XJSC

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