Question about 1994 Ford Thunderbird

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Now it wont run!

Replaced maf sensor. runs a few minutes then shuts off. unplugged the maf sensor..... then it runs...... whats up with this 4.6.

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  • edison771 May 11, 2010

    are you trying to run it with out a filter



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I had the same problem - replace the intake air temp sensor and the idle air control valve. This should take care of it, while you are at it you should change the camshaft positioning sensor - that will go next, then sell it, when they run they run good, when they break it is always everthing but what it should be. LOL that is my opinion though!!

Posted on Feb 05, 2009


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2003 mercury grand marquis dies shortly after I start it and dies even faster when u step on the gas. When its running for a minute it fluctuates and eventually dies.

Could be the mass air flow(MAF) sensor. Unplug it, see if it keeps running. Unplugging it throws the PCM in default mode. Before replacing it, clean it and the throttle body with brake clean. Spray down the sensor and use a tooth brush on the throttle. Clean were the inside plate seats, top and bottom. After that if it still dies( I would put t on a scanner and read codes first) , replace the MAF. Ford did have MAF sensor that wouldn't pop a code, but were out of perimeters. Leaving it unplugged will result in really bad fuel mileage and take a toll on the catalytic converters.

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I have a 97 chevy and my truck is ideling rough so with truck running i unplug the maf sensor and truck died instantly plugged back in fired right up and also with truck running i unplugged iac agian truck...

The MAF Sensor measures air flow & temp,unplug it shuts off

The IAC-idle air control-unplug shuts off

It means you need to pay a professional to find a problem

Dec 03, 2014 | Cars & Trucks

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1999 passat check engine light on and low idle

Best bet is to plug it into a code reader to see what the computer believes the problem to be. Only takes a few seconds and should be next to nothing in cost. Best guess is that the front O2 sensor in your air intake needs replacement. Other possibilities are clogged fuel filter or even worn out spark plugs. Need that code number to pin it down accurately.

Sep 11, 2014 | 1999 Volkswagen Passat

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Nissan xterra

p0456 was likely the gas cap, evaporative emission alert.

Either the exhaust is leaking or management needs reset.

'Clear the Self Learning Data' procedure. Anytime fuel component is replace, this procedure needs to be done. (exhaust emissions as well)

1. Unplug MAF sensor
2. Start car for about 3 seconds. Turn off car. confirm P0102 code
3. re-connect MAF sensor. Clear code. START car.
4. Run car for 10 mins.

Apr 01, 2014 | 2005 Nissan Xterra

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I have a 2004 VW Touareg when Im driving it all of a sudden it shuts off. I restrart it and it will run fine for a few minutes then it stalls agian, again I have to restart it and it runs ok for few...

What you are dealing with is low idle, this can come from a under reporting MAF (mass air flow).A MAF may help thiis siutation, There is also the throttle drive motor, A throttle body service does help in you situation

Feb 24, 2013 | Cars & Trucks

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My 96 ford taurus has been stalling, i had it checked for the code, i was told to replace the mass airflow sensor, after replacing it, it does the same thing. It will run fine if the MAF sensor is...

I have not heard of having to reset ecm for maf sensor but if you would like you can pull batt cable for 15-20 min and reconnect start car and drive for a while to reset computer.

Jan 27, 2011 | Ford Taurus Cars & Trucks

1 Answer

99 ML430 143k miles, had codes for misfires on cyl 4 and 5. Replaced ignition coils to clear codes, now hard to start from cold. Had p0100 code MAP sensor, found cracked/open vacuum hose, replaced hose....

P0100 OBD-II Trouble Code

Technical Description

Mass Air Flow (MAF) Circuit Malfunction

Basically this means that there's a problem with the Mass Air Flow (MAF) sensor or circuit.

You will likely not notice any serious driving problems, but there may be symptoms like a general decrease in power or sluggishness.

A code P0100 may mean one or more of the following:

* The MAF may be disconnected, or a wiring connection may be bad.
* The MAF sensor may be faulty.

Possible Solutions

Use an OBD II Reader (or go tou your local parts store and they will for free) and reset the code and see if it comes back.
Then start with the cheapest, easiest repair procedures:

* Check the Mass Air Flow Sensor wiring/harness is connected properly and that there are no broken / frayed wires.
* Unplug and reconnect the MAF wiring harness a few times to clear the contacts.
* Check the voltage of the MAF sensor (refer to a repair manual for vehicle specific information).
* Replace the MAF sensor.

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Sep 17, 2010 | 1999 Mercedes-Benz M-Class

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2000 catera cold start idles rough and dies. After a few times it gets warm enough and runs smooth as silk.

Did you have battery disconnected or dead recently?

Try to place ignition in run without starting engine for 3 minutes (shut off all accessories and lights etc..). Then shut it off and then start it. Should relearn the idle.

If this doesn't fix the problem, unplug the MAF sensor, if it runs fine with it unplugged, its the MAF sensor.

Exactly what happened on my wife's 01'.

Feb 28, 2010 | 2000 Cadillac Catera

1 Answer

P0102 Grand Prix

P0102 is ---- mass or volume air flow circuit, low input.
Check the wires going to the maf sensor and at the connection. If all seems ok, you might need a new sensor, seeing how it ran a little better when disconnected.

Jul 15, 2009 | 2003 Pontiac Grand Prix

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