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How do you check the Mass air flow sensor on a 1993 ford ranger?
Wiki User
∙ 16y ago
unplug it, if there is no change in how the engine runs it may be bad. the only for sure way is to test it on a sensor tester.
There are some MIL codes that will lead to a faulty MAF
p0102 maf signal low input
p0103 MAF signal high
p1100 maf circuit output low during self test
p1101 maf sensor circuit output low during self test
A few that arent so obvious
Lean or rich codes
fuel trim codes
serious lack of power when accelerating
lousy gas mileage
rough idle or stalling
Look for vacuum leaks between the maf and throttle body and dirt or fuzz on the two wires on the sensor itself, these two items are the easiest to cure.
Clean the sensor with electrical contact cleaner or maf sensor cleaner, but dont touch the fragile wires, they break easily.
Wiki User
∙ 16y ago
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