Connect a scan tool to see the MAF sensor Parameter Identification Data (PID) information. With the engine at idle, the MAF’s PID value should read anywhere from 2 to 7 grams/second (g/s) at idle and rise to between 15 to 25 g/s at 2500 rpm, depending on …
Sep 16, 2020· The average MAF sensor replacement cost is between 140 and 550, depending on the car model and labor costs. A Mass Air Flow Sensor costs 100 and 400 while the labor costs 40 to 150. The MAF sensor itself is often quite expensive, as you sometimes have to replace the whole MAF sensor housing.
Jul 09, 2021· The mass air flow sensor must be cleaned and the air filter must be reinstalled correctly or replaced. Air flow sensor replacement If the air flow sensor is bad, it needs to be replaced. It''s a fairly simple job. The part costs from 89 to 380. If a sensor is dirty, your mechanic may suggest cleaning it (cleaning the airflow sensor is a ...
Sep 01, 2014· In answer to your question to 6 is correct MAF reading for warmed up idle, remember it''s calculated PCM looks at IAT and MAS (sensor frequency) to calculate the weight of the air in grams per/sec. If MAF was bad to run 18% lean you MAF would have to be in the range (18% less than normal).
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Aug 12, 2018· Replied by Chad on topic MAF SENSOR QUESTION. 1 gps per Liter is a widely accepted general RuleofThumb. It is not specification. Many factors will make this vary. A with 5 gps ,at idle, is nothing to be too concerned about. But a with 8 gps is a little suspicious. Likewise, I would question gps on a "Knowledge is a weapon.
Jan 22, 2009· How To Test The GM MAF Sensor (, , , And ) This is one of the easiest mass air flow sensors to Test. The following Test is an On Car Test that checks the performance of the MAF sensor with the engine running. You''ll test this GM MAF sensor with a multimeter that can read Hertz (Hz) Frequency.
The mass air flow (MAF) sensor, part of your vehicle’s electronic fuel injection system, is responsible for calculating the total amount of air entering the engine. A faulty MAF sensor can cause your vehicle to run too rich or run too lean. You’ll notice if the tailpipes eject …
The MAF sensor is located on the top of the engine air filter housing''s plastic air intake tube attached to the rubber air intake hose. If you''d like to try cleaning the old sensor before you purchase a new one, I recommend using some CRC Mass Air Flow Sensor Cleaner spray.
MOSTPLUS Mass Air Flow Sensor Meter MAF For BMW 325 323 525 E46 3 Series 5WK9605. out of 5 stars. (110) 110 product ratings MOSTPLUS Mass Air Flow Sensor Meter MAF For BMW 325 323 525 E46 3 Series 5WK9605.
The 50 g/s max flow reading that you are getting is far lower than what merely altitude can explain. The chart above shows that at about 5,200 ft above sea level, the density of air is 83% of what it is at sea level ( lb/ vs. .075 lb/). So to account for the altitude, you should multiply your expected mass flow by
Jan 21, 2014· If your truck is equipped with a MAF sensor it should read 21g/s average with a functioning EGR hot and 32g/s average without or disabled a EGR or the EGR is shutdown during a extended idle hot. Mid throttle and WOT throttle can vary. you can also look at 20 for a little more information into MAF readings from this thread.
Jul 01, 2013· In general, a “hot wire” MAF sensor produces an input to the PCM when a lowamperage electrical current is passed through a metalfilm resistor suspended in the MAF’s air stream. The amperage flow through the resistor changes because the electrical resistance of the resistor is responding to the cooling effects of rapidly moving air.
MAF Sensor Inspection: Visually inspect for damage, cracks, terminal bends and terminal rust on the MAF sensor. If any of the above are found, replace the MAF sensor. If the MAF sensor PID value or PCM terminal 88 voltage are out of specification, carry out the "Circuit Open/Short Inspection". Circuit Open/Short Inspection.
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The mass air flow (MAF) sensor, part of your vehicle’s electronic fuel injection system, is responsible for calculating the total amount of air entering the engine. A faulty MAF sensor can cause your vehicle to run too rich or run too lean. You’ll notice if the tailpipes eject black smoke or when the engine runs rough or backfires.
If it''s now close to your local barometric pressure, the MAF sensor is not likely to be faulty. If BARO is not close, try one of the cleaning techniques explained in the sidebar "Keeping It Clean" on page 34, then again reset KAM and take a test drive. If the BARO is still out of range, a replacement MAF sensor is in your customer''s future.
The MAF resistance is checked as follows: ohmmeter is connected between terminals 2 and 3 of the MAF sensor’s connector the resistance should be – Ω. When the output signal of the MAF is chopped, with interruptions, and the supply the voltage and the ground are good, it is an indication for a damaged MAF sensor.
Jan 03, 2017· I suspect my MAF sensor is knackered, but I need to understand what it should be so I can check any cleaning/replacement work I do. Attached is a graph of my MAF sensor reading when my car was sat in my driveway at idle. You''ll see it reads at about g/s at idle, then I blip the throttle lightly which is the spike in the graph, then it goes ...