Question about Cars & Trucks
Yes a faulty air flow meter can have an effect on your engine sometimes they can be cleaned with an electrical cleaner and an airline but make sure your air filter is clean first as they can also alter engine performance making many people think that the air flow meter is at fault
Posted on Apr 03, 2015
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Posted on Jan 02, 2017
SOURCE: low/poor idle
Here is what you need to do, a cleaning of the intake throttle blade and the idle speed control air-bypass valve, they get full of gunk over the miles and cause idle issues (stalls) like yours,
Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake
Posted on Oct 31, 2008
SOURCE: Air flow meter
Air sensor for 99 Protege 1.6L, might be applicable to your car as well.
There are two screws on top of the sensor, which should be located past the filter on the air intake. Remove the screws carfeully and pull the sensor out. If you look through the sensor, there should be a tiny element, use throttle body cleaner to blast any deposits off the element, and clean other parts of the sensor while your at it. Just be careful and don't physically contact the element.
The cars computer detects the amount of energy required to heat that element up to a certain temperature, and relates that power requirement to the amount of air flowing by (air temperature and pressure is also measured by the computer). When the element gets dirty, it becomes insulated and the calculations are affected, which will cause the car to hesitate on acceleration. Fuel economy is also affected.
You might hear from people that this part can't be cleaned, I've been doing it for the last 4 years and it is the best 'tune up' you can do for the car, it will run like new!
Posted on Dec 12, 2008
SOURCE: check engine light low air flow
I assume you mean EGR low flow P0401. This is ging to be a faulty EGR dpfe sensor or the ports i nthe intake are clogged behind the EGR valve.
Posted on Mar 17, 2010
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