Question about 1998 Dodge Ram 1500 4WD

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P0171 code Is there a MAF sensor on a 1998 ram 5.2L? If so where is it on the engine?

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  • bobcin24 Mar 04, 2009

    I got 8 codes all together P0300 thru P0306, and the P0171. The truck ran like ****. Worse than when my converter went bad. No power, hesitation, backfire, and the more throdle the slower it would go. I replaced the O2's. I have had a P0302 for 2 years seems to come when its damp and rainy. Then it will go away when the weather gets better. The 8 codes came after i got a half tank of sunoco gas. Thought it might be the gas. Could it be the fuel pump? MAP? Not sure what to do, I do all the work on the truck my self. Don't trust any of the dodge dealers around where i live! Thanks!

  • bobcin24 Mar 04, 2009

    Thats great never thought about the intake gaskets. Did change the cap and rotor about 2 years ago. Better to do it again? Should i go with better than stock replacements? Will that cause me any problems? I always put good 8 or 9mm wires on my 66 dodge. What about the vac leak, any ideas on where to start looking? Thank You!!

  • bobcin24 Mar 04, 2009

    It's a 1966 Dodge Polara, 2 door 383 with 27,047 origional miles. Everything is origional down to the wipers Car never saw rain or snow. Its white with a red int.

    What do you think of Mallory or any of the other brands?

  • mike loshbough
    mike loshbough May 11, 2010

    171 is a lean code not a mass air flow check for vacuum leak



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These engines are know for leaky intake gaskets also replace your cap and rotor.

Posted on Mar 04, 2009

  • mike loshbough
    mike loshbough Mar 04, 2009

    vacuum leak from the intake gasket is common .go with beldon wires get your parts at napa.what kind of 66 do you have as you can see by my handle i have a charger.please rate this solution thanks!



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1998 gmc jimmy will be running fine until sometimes when i come to a stop and go to acellerate then it will spit or sputter

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Where map sensor located

there is no MAP for fueling the ECU uses MAF for air flow.
there is a MAP for EGR only. called a different name. do to that fact.
nice guess,
why not post symptoms.????????????????
this engine fuels mostly off the MAF.
ture air flow.
need maf test page got it.
G16b engine, USA car.

all ways, the scan tool way is BEST, no scan tool , no JOY.

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What is a MAF Sensor?

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I have a 1998 dodge ram 4x4 with a 5.9, engine has been idleing rough, it idles fine for about 30 seconds then runs rough, almost to stalling, also the gas mileage is like 3 miles to the gallon. i had it...

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My 1998 volvo s70 go died when idle at stop i

I'm having the same problem. At first I thought it was bad fuel so I replaced the fuel filter to no avail. Then I cleaned the Mass Air Flow sensor which also didn't work. Is your check engine light on?

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How do i replace a mass flw air sensor on a 1998 chevy blazer 4.3 engine

The mass flow sensor on the 1998 Blazer is along the intake tube right after the air filter intake housing. Loosen the two clamps that hold the MAF sensor between the Air filter box cover and air intake tube, disconnect the wire leads at the MAF sensor connection and remove the MAF. Note it's uncommon for the MAF sensor to go bad and 95% of the time, cleaning it with MAF sensor with MAF cleaner will fix any problem it may of had to trigger the DTC codes.
Start with trying to clean it first just by following the instruction on the MAF cleaner. This should save you time and money to get your Blazer running 100% again soon.
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My 1998 ford taurus wagon misfires when I step on the gas at 30mph and about- occassionally the service engine soon light blinks

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Mass Air Flow (MAF) Sensor The mass air flow sensor (MAF sensor) (12B579) :
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  • uses a hot wire sensing element to measure the amount of air entering the engine. Air passing over the hot wire causes it to cool.
  • sends an analog voltage signal to the powertrain control module (PCM) (12A650) to determine the intake air mass. The powertrain control module will then calculate the required fuel injector pulse width in order to provide the desired air/fuel ratio.
The mass air flow sensor hot wire sensing element and housing are calibrated as a unit and must be serviced as a complete assembly.


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I need the location of MAF sensor in a 1998 Dodge

Your vehicle dose not have a maf sensor. They used a map sensor it is on the engine located under the front of the breater where it attaches to the engine.

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