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Bad map sensor - Mazda Cars & Trucks

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You only know that-- if you know how to
component test it
Don't go by any codes you get
Learn how to diagnose things
There is plenty to learn googling questions

Posted on Jul 26, 2013

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How do you know if a map sensor is gone?


You test it.

  • Map Sensor Testing - YouTube www.youtube.com/watch?v=B8EVhFc5Yqw
    • BY RICHPIN06A
    • 6 MIN
    • 589K VIEWS
    2009-03-15 · Map Sensor Testing manifold absolute pressure ... This feature is not available right now. Please try again later.
  • Part 1 -How to Test the MAP Sensor with a Multimeter (GM 2 ... troubleshootmyvehicle.com > GM > 3.1L, 3.4L Testing the GM manifold absolute pressure (MAP) sensor on your GM 2.8L, 3.1L, or 3.4L V6 equipped car can be accurately done using only a multimeter and a vacuum ...
  • Testing MAP sensor - GM Forum - Buick, Cadillac, Chev ... www.gmforum.com/.../testing-map-sensor-280296
    • 1 POST
    • FIRST POST: 2009-03-30
    2009-03-30 · Possible indications of a bad MAP sensor. Late shifting or harsh shift, incorrect/rough idle, stalling, surging, lack of power. Check the following
  • Geeks On Cars: How to Test a Map Sensor www.geeksoncars.com > Do It Yourself Car Maintenance How to Test a Map Sensor. The manifold absolute pressure sensor, or MAP sensor, monitors the amount of air flowing through the air intake system.
  • Manifold Absolute Pressure MAP Sensors - AA1Car.com www.aa1car.com/library/map_sensors.htm Manifold Absolute Pressure MAP Sensors ... MAP sensors are called manifold absolute pressure sensors rather than intake vacuum sensors because they ...


  • Map Sensor Testing

    Mar 19, 2016 | Cars & Trucks

    2 Answers

    I have a 2005 mercury sable the. check engine light came on. I took it to AutoZone and the readings said it's running lean. Wht does that mean and what could be the cause?


    It means that the engine is running lean which can cause engine knock. When the knock sensors detect excessive knock they set the check engine light.
    Low fuel pressure.
    Dirty fuel filter.
    Dirty or bad MAF sensor.
    Bad MAP sensor.
    Vacuum leak.

    Bad injector.

    Jun 07, 2015 | 2005 Mercury Sable

    1 Answer

    What is code p0106


    A P0106 could be caused by: Bad MAP sensor Water/dirt intrusion affecting MAP sensor connector Intermittent open in the reference, ground, or signal wire for the MAP sensor Intermittent short in the reference, ground, or signal wire for the MAP sensor Ground problem due to corrosion causing intermittent signal problem A break in the flexible air intake duct between the MAF and the intake manifold Bad PCM (do not assume the PCM is bad until you've exhausted all other possibilities)

    Feb 19, 2015 | 2004 GMC Envoy

    1 Answer

    How did engine idle too low?i come across dtc p0105 related to map sensor.engine check light display on mitsubishi pajero/gdi engine


    I'm not sure I understand your question. When I first read it I thought you were saying you had an error code that the engine idle is low, but the error code you've given is for a MAP sensor problem which you mentioned in your post also. I'm going to guess that you've observed the low idle yourself, and when you ran the diagnostics the engine computer was complaining of a bad MAP sensor signal. This is triggered when the engine computer sees a change in another sensor that should correlate with a certain change in the MAP sensor, but the MAP sensor signal doesn't change as expected. Idle problems are a possible symptom of a bad MAP sensor, so this is not unreasonable. What your engine is telling you is that you should check the MAP sensor and its related wiring and hose connections to try to find your problem. If you fix the problem with the MAP sensor then your idle may start working properly again.

    Feb 11, 2015 | 1992 Mitsubishi Pajero

    1 Answer

    2006 HHR with check engine light flashing. Codes


    code 300 means multiple misfire due to plugs, wires, fuel problem including injectors.. A P0106 could be caused by:
    • Bad MAP sensor
    • Water/dirt intrusion affecting MAP sensor connector
    • Intermittent open in the reference, ground, or signal wire for the MAP sensor
    • Intermittent short in the reference, ground, or signal wire for the MAP sensor
    • Ground problem due to corrosion causing intermittent signal problem
    • A break in the flexible air intake duct between the MAF and the intake manifold
    • Bad PCM (do not assume the PCM is bad until you've exhausted all other possibilities)
    Using a scan tool, watch the MAP sensor value with the key on, engine off. Compare the BARO reading with the MAP reading. They should be roughly equal. The voltage for the MAP sensor should read approx. 4.5 volts. Now start the engine and look for a significant drop in the MAP sensor voltage indicating the MAP sensor is working. If the MAP reading doesn't change perform the following:
    1. With the Key on, engine off, disconnect the vacuum hose from the MAP sensor. Using a vacuum pump, pull 20 in. of vacuum on the MAP sensor. Does the voltage drop? It should. If it doesn't inspect the MAP sensor vacuum port and vacuum hose to manifold for a restriction of some kind. Repair or replace as necessary.
    2. If there are no restrictions, and the value doesn't change with vacuum, then perform the following: with the Key on and engine off and the MAP sensor unplugged, check for 5 Volts at the reference wire to the MAP sensor connector with a Digital Voltmeter. If there is none, check for reference voltage at the PCM connector. If the reference voltage is present at the PCM connector but not the MAP connector, check for open or short in the reference wire between MAP and PCM and retest.
    3. If reference voltage is present, then check for existing ground at the MAP sensor connector. If it isn't present then repair open/short in the ground circuit.
    4. If ground is present, then replace MAP sensor.

    Oct 10, 2014 | 2006 Chevrolet HHR

    1 Answer

    Citreon c2 vts rac codereader is po106 p 01/01 map/barc0 ckt range/performance fiited new map sensor still wont start


    what does the scan tool show.??
    ? still P0106, and did you reset it?
    did you try to start car with MAP disconnected, some do start in limphome mode. rich a a pig but starts.
    did you have key off when you fiddled the MAP connector,
    or better pull the battery neg, lug first?


    lost power to the mAP, check the power pin.
    lost ground to sensor.
    lost vacuum to the sensor (clogged paths)
    Bad MAP sensor Water/dirt intrusion affecting MAP sensor connector Intermittent open in the reference, ground, or signal wire for the MAP sensor Intermittent short in the reference, ground, or signal wire for the MAP sensor Ground problem due to corrosion causing intermittent signal problem A break in the flexible air intake duct between the MAF and the intake manifold Bad PCM
    (do not assume the PCM is bad until you've exhausted all other possibilities)

    May 23, 2014 | 2005 Citroen C2

    1 Answer

    P0106 _ 2000 mazda protege lx 1.6


    Manifold Absolute Pressure/Baro Sensor Range Out of Limits.

    You have a bad MAP sensor or a vaccume leak going to the sensor. If you can't find a valid leak to the vaccume lines at the MAP sensor you have a bad MAP Sensor. Check the Vaccume lines FIRST.

    Jul 31, 2011 | Mazda Protege Cars & Trucks

    2 Answers

    PO106 code GM what is that


    P0106 - MAP/Barometric Pressure Circuit Range/Performance Problem

    The Powertrain Control Module (PCM) uses the Manifold Absolute Pressure Sensor (MAP) to monitor engine load. (NOTE: Some vehicles have a Barometric Pressure (BARO) sensor that is integral to the Mass Air Flow (MAF) sensor and do not have a MAP sensor. Other vehicles have a MAF/BARO and a redundant MAP sensor where the MAP sensor functions as a backup input in case of MAF failure.) The PCM supplies a 5 Volt reference signal to the MAP sensor. Usually the PCM also supplies a ground circuit to the MAP sensor as well. As the manifold pressure changes with load, the MAP sensor input informs the PCM. At idle the voltage should be 1 to 1.5 Volts and approximately 4.5 Volts at Wide Open Throttle (WOT). The PCM looks for any change in manifold pressure to be preceded by a change in engine load in the form of changes in throttle angle, engine speed, or Exhaust Gas Recirculation (EGR) flow. If the PCM doesn't see any of these factors change while detecting a rapid change in MAP value, it will set a P0106.

    Potential Symptoms: The following could be symptomatic of a P0106:
    * Engine runs rough
    * Black smoke at tailpipe
    * Engine will not idle
    * Poor fuel economy
    * Engine misses at speed

    Causes: A P0106 could be caused by:
    * Bad MAP sensor
    * Water/dirt intrusion affecting MAP sensor connector
    * Intermittent open in the reference, ground, or signal wire for the MAP sensor
    * Intermittent short in the reference, ground, or signal wire for the MAP sensor
    * Ground problem due to corrosion causing intermittent signal problem
    * A break in the flexible air intake duct between the MAF and the intake manifold
    * Bad PCM (do not assume the PCM is bad until you've exhausted all other possibilities)

    Possible Solutions: Using a scan tool, watch the MAP sensor value with the key on, engine off. Compare the BARO reading with the MAP reading. They should be roughly equal. The voltage for the MAP sensor should read approx. 4.5 volts. Now start the engine and look for a significant drop in the MAP sensor voltage indicating the MAP sensor is working.

    If the MAP reading doesn't change perform the following:
    1. With the Key on, engine off, disconnect the vacuum hose from the MAP sensor. Using a vacuum pump, pull 20 in. of vacuum on the MAP sensor. Does the voltage drop? It should. If it doesn't inspect the MAP sensor vacuum port and vacuum hose to manifold for a restriction of some kind. Repair or replace as necessary.
    2. If there are no restrictions, and the value doesn't change with vacuum, then perform the following: with the Key on and engine off and the MAP sensor unplugged, check for 5 Volts at the reference wire to the MAP sensor connector with a Digital Voltmeter. If there is none, check for reference voltage at the PCM connector. If the reference voltage is present at the PCM connector but not the MAP connector, check for open or short in the reference wire between MAP and PCM and retest.
    3. If reference voltage is present, then check for existing ground at the MAP sensor connector. If it isn't present then repair open/short in the ground circuit.
    4. If ground is present, then replace MAP sensor.

    Other MAP sensor trouble codes include P0105, P0106, P0107, P0108 and P0109.

    I hope this helps to solve it (remember to rate this answer).

    Oct 28, 2010 | 2003 GMC Envoy Xl

    1 Answer

    Can a bad map sensor cause a 2002 nissan maxima to have problems going above 2000 rpmscar runs has engine code for bad map sensor but will not go over 2000-2200 rpms so you canot really accelerate normally...


    If the sensor is bad it causes the computer to change air/fuel mixture for the fuel injection and would have that effect,other possible causes would be a clogged fuel filter or the fuel pump is going bad but you need to change the map sensor if it is sending a code.

    Aug 20, 2009 | 2002 Nissan Maxima

    1 Answer

    I'm getting check engine light on my dash, and it tells me that its code P0106. how do i fix this and what is it?


    This info coutesy of OBD-II codes.com

    Potential Symptoms The following could be symptomatic of a P0106:
    • Engine runs rough
    • Black smoke at tailpipe
    • Engine will not idle
    • Poor fuel economy
    • Engine misses at speed
    Causes A P0106 could be caused by:
    • Bad MAP sensor
    • Water/dirt intrusion affecting MAP sensor connector
    • Intermittent open in the reference, ground, or signal wire for the MAP sensor
    • Intermittent short in the reference, ground, or signal wire for the MAP sensor
    • Ground problem due to corrosion causing intermittent signal problem
    • Bad PCM (do not assume the PCM is bad until you've exhausted all other possibilities).
    Possible Solutions Using a scan tool, watch the MAP sensor value with the key on, engine off. Compare the BARO reading with the MAP reading. They should be roughly equal. The voltage for the MAP sensor should read approx. 4.5 volts. Now start the engine and look for a significant drop in the MAP sensor voltage indicating the MAP sensor is working.
    If the MAP reading doesn't change perform the following: 1. With the Key on, engine off, disconnect the vacuum hose from the MAP sensor. Using a vacuum pump, pull 20 in. of vacuum on the MAP sensor. Does the voltage drop? It should. If it doesn't inspect the MAP sensor vacuum port and vacuum hose to manifold for a restriction of some kind. Repair or replace as necessary. 2. If there are no restrictions, and the value doesn't change with vacuum, then perform the following: with the Key on and engine off and the MAP sensor unplugged, check for 5 Volts at the reference wire to the MAP sensor connector with a Digital Voltmeter. If there is none, check for reference voltage at the PCM connector. If the reference voltage is present at the PCM connector but not the MAP connector, check for open or short in the reference wire between MAP and PCM and retest. 3. If reference voltage is present, then check for existing ground at the MAP sensor connector. If it isn't present then repair open/short in the ground circuit. 4. If ground is present, then replace MAP sensor.

    Jan 22, 2009 | Ford Freestyle Cars & Trucks

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