Question about 1999 Dodge Caravan

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Service engine light - new code

ODB II scanner says:
map baro circuit high input

Is this telling me that the MAP sensor is bad?... or could it be something else?

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  • Curt Tresenriter Apr 18, 2009

    There was no number just the message I posted.

  • Mike Butler
    Mike Butler May 11, 2010

    What was code #.

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  • 23 Answers

I missed the code # - it was P0108

Posted on Apr 19, 2009

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My ford ikon fyjb duratec 1,6 16v engine has these 2 fault codes p0113 and p0107.car starts and rough idles then dies down.what needs to be done and what are these codes?


code p 0107 refers to manifold absolute (MAP) pressure sensor/barometric pressure(BARO) sensor---low input===causes ---wiring short to ground---MAP sensor---BARO sensor---ECM
code p 0113 refers to intake temp temperature(IAT) sensor---circuit malfunction====causes ---wiring open circuit/short to positive---wiring short to ground---ground wire defective --IAT sensor---ECM
take it to an accredited service centre that has experience on your make of car and have it diagnosed

Jan 20, 2017 | Ford Cars & Trucks

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2001 olds alero po108


code p 0108 refers to manifold absolute pressure(MAP) sensor / barometric pressure (BARO) sensor ---high input===causes ---wiring short to positive--MAP sensor ---BARO sensor --- ECM

Sep 28, 2016 | Cars & Trucks

1 Answer

What does code PO108 mean on a 2001 Grand Cherokee


wow , you actually tried to look it up, a 1st time here.

the MAP is a baro sensor used to calculate fuel injection RATES.

if you have gross air leaks to the system the engine IDLE screams.

is it?

108 means the voltage is too high.

usually its unplugged, or bad sensor.

otential causes of a P0108 code: Bad MAP sensor Leak in vacuum supply line to MAP sensor Engine vacuum leak Short on signal wire to PCM Short on reference voltage wire from PCM Open in ground circuit to MAP Worn engine causing low vacuum



Bad MAP sensor Leak in vacuum supply line to MAP sensor Engine vacuum leak Short on signal wire to PCM Short on reference voltage wire from PCM Open in ground circuit to MAP Worn engine causing low vacuum



http://www.obd-codes.com/p0108



and last. but before ECU.

low engine compression, is 1 more, causes , many



what i do is reseat the MAP sensor

i then make sure he vacuum port is not clogged. (both sides)

i then measure the output , keyon, and idle and gunning throttle.

any Voltmeter works here,

key on is 5v or near.

idle 1.8v

gun engine as the RPMs fall like a rock the volts tries to hit 0.5vdc.



http://www.fixkick.com/look/odds-ends/jeep/MAP-sensor-output-real.jpg



very very easy to find with a voltmeter

if the meter agrees with vacuum gage, then the MAP is ok

and you have air leaks or low vacuum for (VAST reasons)

ask.

Aug 19, 2014 | 2001 Jeep Grand Cherokee

1 Answer

What is107 map/baro circuit low input code


Manifold absolute pressure sensor is showing low signal input to the computer this is usually caused by a bad vacuum line on the map sensor, a busted diaphragm in the map sensor or a broken wire in the wiring going to the map sensor

Jul 07, 2014 | 2002 Chevrolet Impala

1 Answer

OBD code po108. RPMs erratic and engine surging at idle


code po108 refers to manifold absolute pressure ( MAP) sensor/ barometric pressure (BARO) sensor---high input====causes--wiring short to positive---MAP sensor---BARO sensor---ECM
Check the MAP sensor first and replace if necessary

Feb 14, 2014 | Chrysler Cars & Trucks

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Get codes p0068 and p0108


codes p0068 refer to Manifold pressure sensor/mass air flow sensor--throttle position correlation--causes ---wiring---map sensor---maf sensor--mechanical fault.
code p0108 refers to manifold absolute pressure(map) sensor/barometric pressure (BARO) sensor--high input. causes ---wiring short to positive---map sensor---baro sensor---ecm.

Mar 28, 2013 | 2002 Dodge Intrepid

1 Answer

My 2004 GMC Envoy has two trouble code readings of 106 & 128. But the light will come on for a while then it will stay off for a while. The auto parts compny that should me the readings said it could...


Hello there,. Below is the detailed information which you asked for.

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Best regards
Ck

P0106 - MAP/Barometric Pressure Circuit Range/Performance ProblemOBD-II Trouble Code Technical Description

Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem

What does that mean? 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.
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, P0107, P0108 and P0109.
P0128 OBD-II Trouble Code Technical Description

Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
What does that mean? This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat. Similar codes: P0125
In determining the engine did not reach a "normal" temperature, it takes into account the length of time the vehicle has been running, the intake air temperature (IAT) sensor reading, the engine coolantmag-glass_10x10.gif temperature (ECT) sensor reading, and the speed of the vehicle.

Causes A code P0128 may mean that one or more of the following has happened:

  • Low engine coolant level
  • Leaking or stuck open thermostat
  • Faulty cooling fan (running too much)
  • Faulty coolant temperature (ECT) sensor
  • Faulty intake air temperature (IAT) sensor
Possible Solutions Past experience indicates that the most likely solution is to replace the thermostat. However here are some suggestions on troubleshooting and repairing a P0128 OBD-II code:
  • Verify coolant strength & level
  • Verify proper cooling fan operation (check if it's running more than it should). Replace if necessary.
  • Verify proper engine coolant temperature (ECT) sensor operation, replace if necessary.
  • Verify proper intake air temperature (IAT) sensor operation, replace if necessary.
  • If the above items check out good, replace the thermostat

Sep 24, 2011 | 2004 GMC Envoy

1 Answer

I have a code P0108 Map/Baro Circuit High Input does that mean that my map sencer is nogood


the map/baro circuit could have an internal short suppling incorrect voltage to the wrong circuit.you need to check the voltages,ground,and return voltage at the sensor plug with it connected to the sensor with the key engine off and the car running to see if the sensor is getting the proper voltage and has a good ground,also check the plug itself as it could be the problem

Mar 18, 2011 | 2004 Dodge Caravan

1 Answer

Component locator - cannot find the MAP sensor


TESTING-MAP- A vacuum line runs from the sensor mounted high to the intake manifold so it can measure the vacuum in the intake manifold. NOTE: Unusually high or low barometric pressures can generate a false DTC for the MAP sensor. If no driveability symptoms accompany the MAP code, do not replace it.
  1. Connect a MAP/BARO tester to the sensor connector and sensor harness connector. With ignition ON and engine OFF, use DVOM to measure voltage across tester terminals. If the tester's 4-6V indicator is ON, the reference voltage input to the sensor is okay. NOTE: The green light on the tester indicates that the VREF circuit is okay, 4-6 volts. A red light or no light indicates the VREF is either too low or too high.
  2. Measure the reference signal of the MAP sensor. If the DVOM voltage reading is as indicated in the table, the sensor is okay.
    1. Turn the ignition OFF.
    2. Disconnect the vacuum hose from the MAP sensor and connect a vacuum pump in its place.
    3. Apply 18 in. Hg of vacuum to the MAP sensor.
    4. If the MAP sensor holds vacuum, it is okay. If the MAP sensor does not hold vacuum, it must be replaced. Fig. 1: Manifold Absolute Pressure Sensor 84174020.gif
      Fig. 2: MAP sensor altitude/voltage output relationship 84174023.gif
      Fig. 3: MAP sensor frequency data 84174022.gif
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Oct 15, 2010 | 1994 Lincoln Town Car

2 Answers

I have 2 pending codes for a 99' pontiac grand prix gt. p0107 map/baro ckt low input.. & p0113 iat sensor 1 ckt high. i need to figure out what these 2 problems come from & what problems will they...


Try unplugging and plugging the map sensor, this device should have manifold pressure hooked up to it, via hose, so check for cracks or leaks. Then clear codes and test again.

Sep 25, 2009 | 1999 Pontiac Grand Prix

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