07 passat code p0642 related to other codes

most likely there is an issue with the air intake, such as a leak or poorly installed intake.


What causes the P0106 code? The MAP circuit for range and performance problem may have several causes:

• The source of the problem is that the MAP sensor range voltage output is incorrect and out of the programmed input required by the ECU.
• The most common problem is an air intake system vacuum or intake hose being loose, cracked, or missing it's plastic fittings and clamps.
• The wiring or MAP sensor may be bad, brittle, cracked, have a bad connection, or could be too close to the higher voltage consumption components, especially alternators, ignition wires, etc. A poor electrical ground can cause problems also.
• The sensor itself may simply be operating out of range from fatigue in it's internal components.
• MAP sensors must operate within specific ranges to send correct signals for the ECU to coordinate with the throttle position sensor and adjust correctly for proper engine operation.
• If the engine is not in good condition, is missing, has poor fuel pressure, or there is an internal issue with the engine like a burned valve, it can prevent the MAP sensor from getting a correct output.
• The ECU could also be bad but that is rare.

What are the symptoms of the P0106 code? P0106 code will be generally preceded by the Check Engine Light coming on the dashboard display. The vehicle in most cases will not run well, idle poorly, accelerate erratically, run rich, and backfire because the MAP sensor and throttle position sensor will not operate together properly.
How does a mechanic diagnose the P0106 code? P0106 is diagnosed with an OBD- II scanner. A qualified technician should then reset the OBD- II fault codes and perform a road test of the vehicle to see if the code comes back. He can observe this by watching live data streaming on his scanner while driving. If the code comes back, then the mechanic will need to do a close inspection to see if the vacuum line and other hoses on the intake system are missing, loose, damaged, or disconnected. If these things appear to be correct, the technician should do a voltage output test on the sensor while the engine is running to determine if the output voltages fluctuate with engine speed and load on the engine. Check that all grounds are operating correctly, since any ground related to the ECU could cause signal fluctuations from sensors.
Common mistakes when diagnosing the P0106 code. Diagnostic errors are largely due to not following the proper procedure. First, follow the test procedure in the diagnosis to insure there is no intake air leak like a bad vacuum hose or connection. The technician must verify that the voltage output of the MAP sensor is correct and fluctuates with the engine speed and proper voltage. Idle voltage is normally 1 to 1.5 volts and full throttle is usually around 4.5 volts.
Do not buy a new MAP Sensor or ECU unless it is clearly at fault.

What causes the P0106 code? The MAP circuit for range and performance problem may have several causes:

• The source of the problem is that the MAP sensor range voltage output is incorrect and out of the programmed input required by the ECU.
• The most common problem is an air intake system vacuum or intake hose being loose, cracked, or missing it's plastic fittings and clamps.
• The wiring or MAP sensor may be bad, brittle, cracked, have a bad connection, or could be too close to the higher voltage consumption components, especially alternators, ignition wires, etc. A poor electrical ground can cause problems also.
• The sensor itself may simply be operating out of range from fatigue in it's internal components.
• MAP sensors must operate within specific ranges to send correct signals for the ECU to coordinate with the throttle position sensor and adjust correctly for proper engine operation.
• If the engine is not in good condition, is missing, has poor fuel pressure, or there is an internal issue with the engine like a burned valve, it can prevent the MAP sensor from getting a correct output.
• The ECU could also be bad but that is rare.

What are the symptoms of the P0106 code? P0106 code will be generally preceded by the Check Engine Light coming on the dashboard display. The vehicle in most cases will not run well, idle poorly, accelerate erratically, run rich, and backfire because the MAP sensor and throttle position sensor will not operate together properly.
How does a mechanic diagnose the P0106 code? P0106 is diagnosed with an OBD- II scanner. A qualified technician should then reset the OBD- II fault codes and perform a road test of the vehicle to see if the code comes back. He can observe this by watching live data streaming on his scanner while driving. If the code comes back, then the mechanic will need to do a close inspection to see if the vacuum line and other hoses on the intake system are missing, loose, damaged, or disconnected. If these things appear to be correct, the technician should do a voltage output test on the sensor while the engine is running to determine if the output voltages fluctuate with engine speed and load on the engine. Check that all grounds are operating correctly, since any ground related to the ECU could cause signal fluctuations from sensors.
Common mistakes when diagnosing the P0106 code. Diagnostic errors are largely due to not following the proper procedure. First, follow the test procedure in the diagnosis to insure there is no intake air leak like a bad vacuum hose or connection. The technician must verify that the voltage output of the MAP sensor is correct and fluctuates with the engine speed and proper voltage. Idle voltage is normally 1 to 1.5 volts and full throttle is usually around 4.5 volts.
Do not buy a new MAP Sensor or ECU unless it is clearly at fault.

P0089 Fuel Pressure Regulator 1 Performance

P0563 high voltage

P0336 Crankshaft Position Sensor 'A' Circuit

P2293 Fuel Pressure Regulator 2 Performance

code p 0106 refers to manifold absolute pressure(MAP) sensor / barometric pressure (BARO) sensor---range /performance problem===causes --intake exhaust leak---wiring---MAP sensor---BARO sensor
code p 442 refers to evaporative emission(EVAP) system--small leak detected===causes --hose connections ---intake leak---EVAP cannister purge valve
it also refers to EVAP system ---large leak detected ---cap loose/ off ===causes --mechanical fault , hose connection EVAP pressure sensor
code p 0455 refers to EVAP system --large leak detected ===causes same as for p 0442 causes

Read this link first:

http://forums.vwvortex.com/showthread.php?5437331-Persistent-P0106-looking-for-some-diagnostic-help

There's a Youtube video to show you how to change it:
How to Replace MAF Sensor VW Passat

Jasmina, for VW code P0106 is the Manifold Absolute Pressurer Sensor(MAP) sensor and can cause the issues you described.
i will post links for you to check out and compare.
to show your appreciation press the helpful button and follow me on fixya for more tips and info.

P0106 MAP Barometric Pressure Circuit Range Performance Problem

https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwjN86bvx_rKAhULuIMKHWtYDpsQFgghMAE&url=http%3A%2F%2Fforums.vwvortex.com%2Fshowthread.php%3F5437331-Persistent-P0106-looking-for-some-diagnostic-help&usg=AFQjCNFw95Y4fLI5tjisHCbOIeLjfDMnag

check engine code P0106 VW Jetta SE 2 5L engine should this be dealer cost

P0106 Code VW GTI MKVI Forum VW Golf Forum VW Golf MKVI Forum VW GTI Forum...

NEED VIN - CHASSIS NUMBER OR ENGINE CODE{BWA??}

P0106 = Map sensor, it is out of range.
P0172 = Fuel Trim it is too rich



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p0642 = sensor reference voltage a circuit low voltage
p0300 = means random misfire
check firing order connections and must be in place.
check also cables especially the high tension cable and coils for required resistance.
primary = 1.0 to 0.5 ohms
secondary = 900 to 11,000 ohms (as requires per model)

CODE 89 IS FUEL PRESSURE REGULATOR 1 PERFORMANCE.CODE 642 SENSOR REFERANCE VOLTAGE CIRCUIT "A" LOW.AND CODE 2004 IS ITAKE MANIFOLD RUNNER CONTROL STUCK OPEN.CK FOR BAD OR MISSING VACUUM LINES.IS IT STILL UNDER WARRANTY