Do you have everything in the air duct between the throttle body & the MAF connected properly, including the fresh air makeup line that runs from the back of the intake hat over to the passenger side valve cover?

 

i'll go double check it , the part of the MAF that faces air cleaner the doesnt seem to want to go in as far as the old one, im going to go out and see if i can get it to go further into the seal.o.k. i got it to go in further it is all the way in, still didnt help every thing else is good, fresh air line all good too. it still will run better if i disconnect the MAF but still lack of power, it just dont surge. i plugged it back in and drove it for around 15 min... it still isnt putting out any code's, just a consistant bucking.anything? anybody? ( Tap) (Tap) (Tap) is this thing on?i don't know if it matter's but when it is cold it run's about as good as it does with the MAF unplugged, as soon as it warms up to about110 degree's it starts gradually then gets worse as it get's warmer

 

i changed the MAP sensor and fuel filter today still no luck. soo it is still running the same. after being bummed out i picked up my tool's and locked it and went into the house, next thing you know the horn alarm went off...well i've had the car for a year and it never worked!! so how in the world did that happen? any body got any idea's ?