What does the map sensor do? What are the effects of a map sensor failing? Thank yall

S.C. Smith

 

Basically, it senses the engine load via vacuum. Sluggishness and poor gas mileage would be a couple of symptoms of a bad sensor. They don't go bad very often, though.

 

I thank you for the info. I may change it, because i am one of those people with the mystery skip from idle to 2500. I thank you again
S.C. Smith

 

i just had to replace mine, litterally 3 days ago. the check engine light comes on when they break and my car seemed to be missing a piston. it had no power in 6th gear. when it was good i could drive my car in 6th at 40 mph no prob. when it was broke i couldn't do 60 in 6th. its a huge difference for such a little part.

 

I changed it, no difference

 

Make sure your coil wire didn't pop off.

 

can a map sensor make one backfire and stuff?

 

change the egr valve too i was told they both go at the same time. i also had to replace mine about two weeks ago