Question about Mazda MAZDA6

1 Answer

Engine runs , but total loss of power. Is air intake to engine restricted or blocked?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 3 Answers

Sounds like you have a faulty air mass meter
when these go it can cause lack of power
have you had a diagnostic check done on the car?
the air mass meter can go faulty but the engine check light may not come on
also check the operation of the EGR valve this can cause a lot of problems too

Posted on Dec 03, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How do check restricted or blocked exhaust what are the systems?


The tone of the exhaust will sound markedly different if it's restricted or blocked. If the muffler is the cause then sometimes the extra pressure build up will burst the seam. When that happens , you won't have any trouble hearing the exhaust. If the butterfly on the exhaust diverter doesn't open fully after the engine warms up it will restrict the exhaust and the intake manifold will overheat which will raise the temperature of the air entering the engine. That will affect power.

Aug 31, 2014 | 2003 Nissan Murano

1 Answer

I just fix the intake gasket on my 5.7 vortex 99 gmc suburban....it ran fine for two days....now its making a noise ....has loss of pressure and the temperature hand suddenly creeps up...what could this be


If sounds as if you now have a coolant leak due to a presumed faulity gasket installation. An intake normally or customarily has coolant passages in addition to air passages. Some engines just have coolant ports in the engine block which are sealed by the proper installation of the mentioned gaskets. If the noise is coming from the engine block, such as a knock....the antifreeze has most likely leaked into the oil pan and mixed with the oil which is being circulated throughout your engine every time it is now running. If this has happened, your oil will take on a milky tan appearance. It commonly happens in such instances, that the contaminated oil circulates through the crankshaft main bearings causing a pitting/scoring of the bearing surfaces due to a type of percolation happening due to the heat or friction generated within the bearing assembly itself. If not corrected before bearing damages occur, you are looking a a total rebuild or replacement of the engine block, which is very expensive. I hope you have caught it soon enough. Best Wishes

Sep 01, 2014 | Cars & Trucks

2 Answers

Engine will bog down and only go so fast


Bad O2 sensor, leaking injector, blocked air filter, and other possible causes. A restricted exhaust would also cause loss of power but not make the engine run rich.

Jan 20, 2014 | 1991 Isuzu Pickup

1 Answer

Nissan navara D40 making winding/whining noise when over 1500rpm


turbos normal make a whining noise under load noise may be present more then before if you have changed anything on the intake side sometimes it can be as little as a lest restricted air filter other cause is lose piping but some power loss would be noticeable if this was the cause
hope this helps good luck

Jan 15, 2014 | 2010 Nissan Navara 2.5

1 Answer

2000 nissan sentra 2.0 error codes p0101& p0102


P0102 - Mass Air Flow Sensor Circuit Malfunction

The mass air flownissan-maxima-maf-sensor.jpg or MAF sensor is placed in the intake air duct between the air filter and the engine intake manifold. The MAF sensor measures the amount of intake air flow. The MAF sensor converts the air flow measurement into a voltage or frequency signal, with the voltage or frequency changing proportionally to the amount of air flow. The air flow sensor signal is monitored by the engine computer (ECM). The engine computer (ECM) uses the mass air flow signal to know the engine load and to calculate the proper amount of fuel injected. If the signal from the mass air flow sensor is out of expected range, the ECM detects a fault and sets the code P0100. For example, the mass air flow sensor signal could be higher than expected when the engine is not running or lower than expected with the engine running. A car with the code P0100 may have some driveability issues, such as stalling, lack of power, surging, hesitation, etc. In some cars, the code P0100 can cause the fail-safe mode where the engine speed would be limited to 2,500 - 3,000 rpm.
If there are other trouble codes present, they might need to be looked at first. Checking the freeze frame may help, as it may contain some important information. The freeze frame is a snapshot of the engine parameters at the moment when the fault was detected. The freeze-frame may show whether the vehicle was running or stopped, whether the air-fuel ratio was lean or rich, was the engine was cold or warmed up at the time of the malfunction. Read more about the freeze frame.


Read more about mass air flow sensor.

What could cause the code P0100:
- faulty or contaminated mass air flow sensor
- open or short in the mass air flow sensor electrical circuit
- open or short in the sensor power or ground circuit

- other electrical problem with the MAF sensor wiring, (corroded wires, bent terminals, bad ground connection, burned fuse, etc.
- vacuum leaks
- restricted air flow at or before the air filter
- wrong air flow sensor installed
- problem with ECM





P0102 - Mass Air Flow Sensor Circuit Low

The mass air flow or MAF sensor measures the amount of air entering the engine. The engine computer (ECM) uses the mass air flow signal to calculate the amount of fuel injected (read more how the MAF sensor works below). The code P0102 is set when the signal from the mass air flow sensor is lower than expected. Often a car may exhibit some driveability symptoms, such as lack of power, surging, hesitation on acceleration, hard starting, pinging (detonation), or rough idle when started cold. Often the codes P0171 or P0174 could also be stored along with the code P0102, as the incorrect air flow signal can cause the engine to run lean. The codes P0171 and P0174 indicate a lean condition. Checking the freeze frame might help in the diagnostic process. The freeze frame is stored in the ECM along with the trouble code. The freeze frame contains some recorded parameters (e.g. vehicle speed, engine temperature, fuel trim) at the moment when the fault was detected. The freeze frame can also be accessed with a scan tool.



What could cause the code P0102
- faulty or contaminated mass airflow sensor
- debris blocking the air flow at the mass air flow sensor
- unmetered air leaking past the MAF sensor (vacuum leaks)
- PCV system vacuum leaks
- restricted or collapsed intake air duct
- dirty or restricted air filter
- restricted air screen before the air filter
- improper application of aftermarket components (e.g. cold intake, modified air filter, etc.)
- wrong air flow sensor installed
- electrical problem with the MAF sensor wiring, connector, power supply or ground.
- problem with ECM
- in some cases other issues with the fuel injection system like a clogged catalytic converter or a faulty manifold absolute pressure sensor (MAP) can also cause the code P0102.




Solution for MAF repair

Oct 20, 2012 | 2006 Kia Sorento

1 Answer

1988 isuzu 4x4 2.6 has a rough idle and loss of power


check for any vaccum leaks. is check engine on? use long nose plyers to crimp vaccum hoses. , if engine changes tone you found the problem....also, look into the intake , and see if anything is blocking the mass air flow sensor... more later.

Dec 29, 2011 | Cars & Trucks

2 Answers

Loss of power when accelerating in 1998 Dodge 1500. Changed TPS better but still lacks power?


could really have a number of problems which are but not limited to timing, fuel restriction, wiring to a sensor O2 or TP ECT sensors or even corrosion in wiring, ignition system (cap, rotor, wires, plugs). exhaust restriction, restricted air intake (air filter). please look at all obvious first and if find something please let me know

Mar 17, 2010 | 1998 Dodge Ram 1500 4WD

2 Answers

Degreased engine compartment got a check engine light says idle air control too low sounds like it must have gotten wet can it be dried out or is it totaled??? 2004 f150 4.6


P0506 - Idle Air Control System RPM Lower Than Expected  Vehicles with electronic throttle control (ETC) This DTC is set when the Powertrain control moduel module (PCM) detects an engine idle speed that is less than the desired RPM.  Air intake restriction.
Exhaust restriction. 
Engine mechanical fault. 
Damaged electronic throttle body (ETB) 
Damaged PCM 
This DTC is informational only and it may be accompanied by other DTCs. Diagnose other DTCs first. If other DTCs are not present inspect the intake air system for air restrictions and damage. If no concerns are present, clear the DTC and retest.

Hope this helps, keep me posted be glad to help. 

Jun 30, 2009 | 2004 Ford F150

1 Answer

High idle air intake gasket I have a 95 chevy blazer with a 4.3 litre engine. It has a high idle. It runs at 1200 when starting in the morning and around 1700 when engine is warm. Today i totally blocked...


HI!!! first try this get brake cleaner.go little bylittle spraing all around the intake if run normal and changes the rpm.you have intake leak' o change idle sped sensor

Feb 25, 2009 | 2000 Chevrolet Blazer

1 Answer

Landcruiser KZJ95W engine problem


hi, better check the TCV (timing control valve) located below the injection pump.

Jun 27, 2008 | 1996 Toyota Land Cruiser

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

146 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mazda Experts

yadayada
yadayada

Level 3 Expert

60960 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Mazda Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...