i pulled codes12, 33, 34, 43. can anyone tell me what this codes mean.


thanks. i was told also my computer is bad on my car.

 

click the little picture

 

bump

 

A little more info would help, like year and engine of your car.

12 is just to let you know you are in diagnostic mode

33 & 34 are both for your MAF sensor, one is for reading high the other for reading low(or MAP if a speed density system)

43 is Electronic Spark Control: open or short or defective esc module or defective knock sensor or defective ecm

 

i have a 3.1 firebird auto,

when my engine is cold my car runs alot better and i can spin my tires holding the brake, when hot i lose alot of power, and holding the brake i cant spin the tires.

i got a brand new map, its runs little better . where is this Electronic Spark Control.

i have a knock sensor also. but i dont know where it is on my engine, and how hard is it to change and what tools i need to replace it
and the ecm is the computer right

 

bump

 

if you click the link it will take you to a page with the codes man

 

its been fixed the knock sensor was bad