That reading looks OK then cos normal is:
-idle 20 +/- 3 Kg/hr
-2500 rpm 60 +/- 3 Kg/hr
but MAF malfunction won't give you missfire on only one cylinder, it has different symptoms:
In the event of a MAF sensor signal failure any of the following symptoms may be observed:
l During driving engine rev/min may dip, before recovering.
l Difficult starting.
l Engine stalls after starting.
l Delayed throttle response.
l Emissions control inoperative.
l Idle speed control inoperative.
l Reduced engine performance.
l MAF sensor signal offset.
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