What should MAF sensor read g s?
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 engine size. Most manufacturers provide specifications for air flow at idle; some will provide specifications at several engine speeds.
What happens when the temperature of a MAF sensor changes?
Whenever the temperature difference between the two sensing wires changes, the MAF will either increase or decrease the current to the heated wire. This equates to more air into the engine or less air into the engine. There are a number of driveability issues that arise from faulty MAF sensors.
How much does it cost to replace a MAF sensor?
MAF Sensor Replacement Cost. A Mass Air Flow Sensor is not so cheap but it is not very expensive either. You could get one for $120 – $300 to which you should add labor costs of $80 – $100. Therefore, on average you are expected to pay $200 to $400 in total for a mass air flow sensor replacement.
Which is MAF sensor does the PCM use?
The PCM uses this input to calculate engine load. There are several designs of MAF sensors, but the most common by far is the hot wire MAF sensor. The hot wire MAF has two sensing wires. One wire is heated and the other is not.
Can a faulty MAF sensor cause excessive fuel consumption?
Excessive Fuel Consumption The MAF sensor constantly checks the amount of air flowing into the engine and this helps the engine decide on the right amount of gasoline needed for combustion. A faulty MAF sensor can give an incorrect reading to the PCM, causing the engine to consume too much gasoline. Where is the MAF Sensor Located?
What was the RPM before I changed the MAF sensor?
But the rpm is at 800 and steady. It was 750 before I changed the MAF sensor. another idea: check if ECU need to perform “MAF learn” procedure on your engine.
Do you have to reprogram the MAF sesnor?
No, you should not have to reprogram the computer. Is there any cracks or air leaks between the MAF sesnor and throttle body? You might have a bad new mass air flow sensor. Experience: ASE certified tech ADVANCED LEVEL PERFORMANCE. Wisconsin certified emissions state inspector
Excessive Fuel Consumption The MAF sensor constantly checks the amount of air flowing into the engine and this helps the engine decide on the right amount of gasoline needed for combustion. A faulty MAF sensor can give an incorrect reading to the PCM, causing the engine to consume too much gasoline. Where is the MAF Sensor Located?
How to replace the mass air flow sensor?
Here is the tsb on replacing the Mass Air flow sensor. You only have to reprogram the computer if necessary. Here is the instructions. See for yourself. 1. Remove the air filter element. Then, vacuum out all dust/dirt/debris found inside both halves of the air filter housing.