what are the symptoms of a map sensor failing ?

 

surging, rough idle, rich fuel condition which may foul your plugs, detonation due to too much spark and a lean condition, loss of power and fuel economy. Check for a vac leak whick map cause the map to read wrong or codes p0105 or p0109.

 

but this is at wot or normal driving and i i didnt know the MAP senor cn cause all of this

 

your MAP takes vacuum reading and uses them to fuel your vehicle so it can cause a lean or rich condition