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Fred Klarmann Posted on Apr 14, 2016
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Why is there gas in the intake tube?

Have had trouble with car starting and stalling. Checked codes with meterPO101 mass or volume air flow circuit range/performance. I sprayed and cleaned the intake sensor, then replaced it. Found gas in the intake tube.

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Randy Ohler

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  • Cars & Trucks Master 14,585 Answers
  • Posted on Apr 14, 2016
Randy Ohler
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The air intake plenum is the part between the air filter and throttle body. This will have some oil in it. If you smell gas in it also, the would and injector that is stuck open. When you turn the vehicle off, the fuel pressure push the fuel threw that injector. Fuel will seep past piston rings. Check you oil. If it extra high, you may several injectors with problems. Also smell the dip stick to see if it smells like gas. The fuel pressure regulator can also cause a gas smell on the dip stick, not usually in the air intake plenum. Best way to check that is pull the vacuum line off the regulator and smell for gas there. You smell it, the regulator is bad.

Testimonial: "it was the fuel pressure regulator. The diaphragm inside went bad and regulator was pushing gas into the vacuum line. Thanks."

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  • Contributor 6 Answers
  • Posted on Apr 14, 2016
Adam
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You mean gas in the air intake??

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Related Questions:

1helpful
1answer

2011 Nissan Sentra can I drive the car with code P0101 and code P0354?

Hi Joe
Don't forget it is P-Zero and not P-Letter O.

Yes, just about. This is the one that will leave you stranded though.

P0354 OBD-II Trouble Code: Ignition Coil D Primary / ...

YourMechanic https://www.yourmechanic.com > Articles
Trouble code P0354 means there's a problem in ignition coil D circuit, probably an electrical problem, and the engine will run rough or stall.

Nissan; MIL ON with DTC P0101

National Highway Traffic Safety Administration (.gov) https://static.nhtsa.gov > odi > tsbs PDF Dec 1, 2016 - The MIL is ON with DTC P0101 for Mass Air Flow sensor (MAF) stored in the ECM. ... 2011 Sentra. (with MR20DE engine). 9AA0A, 9AA1A, 9AA2A, 9AA3A.
11 pages

Code P0101 2011 Nissan Sentra Mass Air Flow Circuit ...

AutoCodes https://www.autocodes.com > p0101_2011_nissan_sen...
The Mass Air Flow (MAF) sensor is placed in the stream of the intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It ...

..
0helpful
1answer

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
0helpful
1answer

2008 Chevy Kodiak c4500 duramax desiel code reader (Innova 3100 Can OBD2) shows P0102, what does it mean

P0102 Chevrolet - Mass or Volume Air Flow Circuit Low Input

Read more: http://engine-codes.com/p0102_chevrolet.html#ixzz38p5k1ZD8

Possible causes - 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.


Read more: http://engine-codes.com/p0102_chevrolet.html#ixzz38p5tpWZk
0helpful
1answer

2004 s40 ,,,,po103

P0103 - Mass or Volume Air Flow Circuit High Input

Possible 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
0helpful
1answer

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.
0helpful
1answer

P0101

P0101: MAF or VAF A Circuit Range/Perf

- 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

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.

1helpful
3answers

DTC Code P0107

P0107 -- CONTINUOUS
Continuous diagnostic trouble code P0107 indicated barometric pressure out of range low was detected during normal operation.

Possible cause
- faulty internal BARO sensor (PCM)

Perform KOEO On-Demand Self Test.
Is P0107 present?
Yes, REPLACE PCM. CLEAR DTC and RETEST.
No, P0107 is intermittent fault. CLEAR DTC. If DTC reappears, REPLACE PCM.

If you keep getting it, a new PCM is the only fix.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

2helpful
2answers

PO103 and 116 code on a 1997 jetta 2.0

P0103 - Mass or volume air flow circuit high input.

Symptoms: Engine stalls, running rough, excessive fuel consumption, excessive smoke from the tail pipe, check engine light on.

Possible 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.

P0116 - Engine coolant temperature circuit range/performance.

Symptoms: Check engine light on.

Possible Causes: Low engine coolant level, ECT sensor harness open or shorted, ECT electrical circuit poor connection, faulty engine coolant temperature sensor (ECT), faulty engine coolant thermostat.
0helpful
1answer

One min light on i checked code p0102 came up was on for a day then i used it this morning light was off for like 6hours then now its back on

The light will go on and off until the actual system has failed.

P0102 - Mass or Volume Air Flow Circuit Low Input.

Symptoms:
- Engine stall
- Engine running rough
- Excessive fuel consumption
- Excessive smoke
- Engine light ON

Possible Causes:
- Harness or connectors (The sensor circuit is open or shorted.)
- Intake air leaks
- Mass air flow sensor may be faulty

Possible Solutions:
- Replace air filter
- Clean air flow meter
- Replace air flow meter
2helpful
1answer

OBDII SETS CODES P0401, P0171 & P0174 . 1998 Mercury Sable

P0401- Exhaust Gas Recirculation Flow Insufficient Dectected
Possible causes - Harness or connectors (EGR volume control valve circuit is open or shorted.)
- EGR volume control valve stuck closed
- EGR volume control solenoid valve
- Dead (Weak) battery
- EGR passage clogged
- Exhaust gas leaks Possible solution - Clean EGR Valve
- Repair EGR harness or connector
- Replaced EGR volume control solenoid valve
- Replaced EGR volume control valve
Code P0171- Fuel Injection System Too Lean Bank 1 Possible causes - Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection Possible solution Dirty air filter of faulty air flow sensor are common causes of the problem P0174- Fuel Injection System Too Lean Bank 2 Possible causes - Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection Possible solution Dirty air filter of faulty air flow sensor are common causes of the problem.
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