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Put idetical engin in 98 malibu when i start it goes to 4000 rpm and stays replaced mass air flow unit it reads random missfire code help

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  • Cars & Trucks Master
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You must use a tuner like "hp tuners" software to setup your new engine a shop can do this for you

Posted on Mar 17, 2018

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6ya6ya

6ya staff

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Posted on Jan 02, 2017

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Anonymous

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SOURCE: having problems with my 96 chevy tahoe mass air flow

The MAF (Mass Air Flow) sensor is a very common problem with these along with the pickups. This isn't what you would call an inexpensive part. Definitely do some shopping before you buy one.

Posted on Nov 10, 2008

autodr

autodr

  • 260 Answers

SOURCE: Cleaning the Mass Air Flow Sensor

i will try to help. 171/174 indicates lean condition in engine. the mass air flow sensor is located in the rubber tube going to throttlebody. you can try to clean it. using mild carb cleaner safe for sensors, remove sensor from tube. spray clean the tiny wires located in the cylinder. do not touch them, they are very delicate. these engines are also notorious for leaking intake gaskets and faulty pcv valves. these will all set these 2 codes. feel free with anymore questions.

Posted on Nov 15, 2008

Anonymous

  • 1 Answer

SOURCE: 000 NISSAN Xterra -- after warming up, loses RPM by 500-1000..... have replaced ignition wires and distributor, checked mass air flow sensor and OK.....

I had a problem on my Nissan Xterra 2000. Symptons sound similar. In my case, it ran fine for a while and then suddenly the engine starts to stumble and lose output. At one point it did not even have enough HP to move. Irregular idling too. Thought it was water in my fuel. Bought water remover from the store and added to gas tank. Problem did not go away. Instead, "Service Engine Soon" light came on. Had to have it towed to the dealer as there was no way the engine could keep up with traffic. Dealer replaced the "Crank Position Sensor" today. Parts $33.00, Labor: $300 (about 3 hrs worth of work). Seems to work fine now but I will wait and see. Dealer also stated that Distributor bearing appears to be noisy and will need to be replaced sooner or later. I will wait for it to go before I fix that.

Posted on May 27, 2009

ElDopa

ElDopa

  • 295 Answers

SOURCE: CODE PO102 after Mass Air Flow Sensor replaced

Most faultcodes don't disappear automaticly, the have to be 'reset' manually after repairing. It sounds like the code didn't get erased after replacing the MAF. You could try to disconnect the battery for 10 minutes (disconnect and reconnect the negative (-) pole), which should erase the code.

Whenever the engine light still comes back on after that, there probably still is some (other) problem ...

Posted on Aug 24, 2009

beauman

Wes Manacop

  • 60 Answers

SOURCE: 1997 nissan sentra, scan code reads p0100/ mass or

you may havta replace the air flow meter module.

Posted on Jan 04, 2010

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2003 Nissan Altima 2.5L Service Engine Soon Light is on, Auto Zone says codes are for MAF and O2 Sensors. Car hard to start after driving a while but when starts appears to run smooth. Auto Zone thi


ok lets start with the codes they say your getting. P??? which 1's and how many. there are few o2 sensors, are they next to the Exhaust next to the converter? MASS AIR FLOW -MAF use this, for now i am guessing, until i see the correct codes your are getting. this could be the 1 you may have below, please read it........
  • P0103
    Mass Air Flow Sensor Circuit High Input
  • 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.
  • possible symptoms Engine Light ON (or Service Engine Soon Warning Light)
    - Engine stall
    - Engine running rough
    - Excessive fuel consumption
    - Excessive smoke
  • the code is generated when An excessively high voltage from the sensor is sent to Engine Control Module (ECM).
2003 NISSAN Altima Sedan OBDII Codes List

Oct 22, 2014 | 2003 Nissan Altima

1 Answer

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

Jul 28, 2014 | Cars & Trucks

1 Answer

After my car stalling and then starting and not staying running longer than a minute we replaced the fule filter, fuel pump, and fuel pump strainer. Now it runs and drives, but it idles high around 1.5 to...


Remove the mass air flow,and clean it with intake cleaner spray,or mass air flow cleaner spray,if this does not help,reset the system again,by removing the negative battery cable for at least 20 seconds,then put it back on,if this does not help,replace the mass air flow sensor

Oct 25, 2011 | 1995 Ford Windstar

1 Answer

P0068 on a 2006 Dodge Ram 1500 SLT. Rough "hunting" for idle. Momentary lag/loss of power from a stop. Random RPM changes while at a constant speed. Sometimes it feels like it drops out of gear...


P0068 Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of power
- Engine rough idle Possible causes - Large vacuum leak
- Leaking air duct system
- Mass Air Flow (MAF) poor electrcial connection
- Manifold Absolute Pressure (MAP) poor electrcial connection
- Faulty Mass Air Flow (MAF) sensor
- Faulty Manifold Absolute Pressure (MAP) sensor
- TP sensor not seated properly.
- Faulty Throttle Position (TP) sensor.
- Dirty throttle body
When is the code detected? The Powertrain Control Module (PCM) monitors operation rationality check by comparing sensed throttle position to mass air flow readings
P0068 DODGE Description The Powertrain Control Module (PCM) monitors a vehicle operation rationality check by comparing Throttle Position (TP) to Mass Air Flow (MAF) readings. If, during a self-test, the comparison of the TP sensor and MAF sensor readings are not consistent with the calibrated load values, the test fails and a diagnostic trouble code is stored in continuous memory.

Jul 10, 2011 | Dodge Ram 1500 Cars & Trucks

2 Answers

98 SW wagon starts fine but stalls out when put into drive or reverse. Code P0743 comes up after diagnostic check. Says Torque Converter Circuit is open. How do I go about fixing this?


I was definitely gonna say your torque converter. The fix is to replace your torque converter. The convertor basically transfers the moving motion from the engine to the non moving motion of your transmission smoothly. When it goes bad it will usually make the motor run rough in gear or stall the motor when it's completely bad. It will be a fairly expensive cost since the torque convertor sits between the engine and transmission. It also could be faulty wiring as well. You would have to have it physically diagnosed by a mechanic to confirm if its electrical or the actual torque convertor.

May 14, 2011 | 1998 Saturn SW

1 Answer

In my '98 Century I am having serious hesitation while accelerating... Only happens sometimes, but frequency is increasing. When the problem occurs, I will drive for a bit, and when put in park, idle...


P0101 Mass Air Flow, P0300 random misfire, Your problem is the Mass air flow, the P300 is the result of the mass air flow range, Mass air flow is a hot wire sensor they fail when contaiminated, as for the P300 that the engine detecting the condition when the mass airflow range is out, but here is another problem 1998 Buick used a back up its called a map sensor its on the top of intake plenum, make sure its seated and wire connection are there, Now you are going to fix the problem yourself if you ever taken out ,a airfilter and replaced it, then all you need to do is purchase a MAF cleaner mass airflow cleaner or brake cleaner or electrical cleaner clean the inside of your mass airflow you dont have to replace it the code is range performance the hot wire cant clean itself, so someone has to do it

May 04, 2011 | 1998 Buick Century

1 Answer

98 ford explorer running to lean, replaced fuel pump, mass air flow sensor and checked for vaccuum leaks. Any suggestions? we are at a complete loss at this point. Please help


spray carb/choke cleaner under intake on mating surface to lower intake. go around the whole intake, dont be shy but spray it.(motor running) does rpm change? if bad seal Usually rpm raises. if so replace intake gaskets, $22.00 parts. Is check eng light on? if yes code check it.although it will only read lean as it cannot detect air leaks. if no code or light carb cleaner is the way to check for air leaks. NOT STARTING FLUID!! I just finished this repair on my 98 tonight, 1-6-11 it runs great, idles also.

Dec 31, 2010 | 1998 Ford Explorer

1 Answer

Engine light on, bad fuel milage


You didn't mention if you replaced the mass air flow sensor, if the tech got that code, it needs replacing, if you haven't alresdy done so.

Feb 25, 2009 | 1997 Buick.5 Regal

1 Answer

Service engine light


Good Day,

Code P0102 indicates MAF(Mass Air Flow) sensor circuit, low frequency detected

Code P0300 indicates Random Cylider miss fire, meaning missfire in more than one cylinder

The misfire could be a result of the mas air flow sensor being faulty.

Hope this helps for now

Let me know what size motor and if it's 2wd or 4wd and I can get detailed instructions for replacing

Jul 05, 2008 | Chevrolet Suburban 1500 Cars & Trucks

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