Here is the pic of my air intake. Note that I dont have the MAF sensor connected. It used to be in the trunk of my car but I have tried everyway to put the MAF sensor in there so I can make it work somehow.
http://www.automotiveforums.com/t763459-what_is_the_maf_sensor_for_and_is_it_that_important_.html
Mass air flow hooked up car wont run unplug it car runs fine. mass air flow hooked up car wont run unplug it car runs fine. Submitted: 5 years ago.
http://www.justanswer.com/mitsubishi/4xva4-mitsubishi-galant-es-mass-air-flow-hooked-car-wont-run.html
Again, sometimes the air snorkel gets ripped or cracked and air leaks into the engine after the mass air flow sensor and the engine will run better with the sensor disconnected. This is actually very common!. It can do this if there is any sort of air or vacuum leak on the engine at all.
http://www.justanswer.com/mitsubishi/4xva4-mitsubishi-galant-es-mass-air-flow-hooked-car-wont-run.html
THat is why I am having you check this reference voltage to the sensor. If you can get the engine to run at all (idle or off idle) with the sensor hooked up, do so and check the mass air flow sensor return voltage back to the computer and let me know!
http://www.justanswer.com/mitsubishi/4xva4-mitsubishi-galant-es-mass-air-flow-hooked-car-wont-run.html
The CEL can mean a hundred things. Generally, it is a external warning set by the Engine Computer (DME) or Transmission Computer that something is wrong and the DME stores secondary “codes” that can be read by a mechanic to tell what is wrong. You need to know the secondary codes to know what the cause might be.
http://sites.google.com/site/mikefocke2/checkenginelightcausedbymassairflowsensor
Clean your MAF to see if that helps before buying a new one ($260 to $440!). Take out the MAF, get a can of electrical contact cleaner (sample pictures above) and spray it into the hole in the MAF with the little wire inside and onto the portion that looks like a paper clip (see picture below).
http://sites.google.com/site/mikefocke2/checkenginelightcausedbymassairflowsensor
If your vehicle runs better when the mass air flow sensor is unhooked or disconnected, then chances are the signal from the mass air flow sensor is bad (for a few different types of reasons) or you just have an air or a vacuum leak. Be sure to check the intake air snorkel for cracks or ripes and replace it as needed.
http://www.justanswer.com/mitsubishi/4xva4-mitsubishi-galant-es-mass-air-flow-hooked-car-wont-run.html
The flat piece on top with the stop-sign like sticker is the air cleaner cover, just to its left (or rear) you see the wires connecting the MAF to the DME. Remove the wires and socket that connect to the MAF by pinching the long sides of the top piece of the plug. Then wiggle the top socket loose from the bottom half.
http://sites.google.com/site/mikefocke2/checkenginelightcausedbymassairflowsensor
The MAF sends readings to your computer, which then uses them to adjust the mixture of fuel/air in the combustion chamber. If there is no MAF you will be getting all kinds of misfires and very bad fuel economy. In the long run, it's probably cheaper to replace the MAF. You can also try spraying the wires in the sensor with some carb cleaner. Alot of the time the MAF is just dirty and doesn't actually need replacement. EDIT: Ooops, I meant contact cleaner.
https://answers.yahoo.com/question/index?qid=20090819141644AAox9qW
One thing you can do is on a cold morning when the car is cold, start the car and listen for the whine of the air injection pump. It should be on for 30-45 seconds and then shut off. If you can't hear it, tell your mechanic that. You can trace at least the lines to see if there is an obvious loose line or an air leak.
http://sites.google.com/site/mikefocke2/checkenginelightcausedbymassairflowsensor
what would happen if you start car without maf sensor plug connected
If you start car without MAF sensor plug connected, you will be getting all kinds of misfires and very bad fuel economy. If you start the car without the Mass Air Flow sensor plug connected, you will be getting all kinds of misfires and very bad fuel economy.