Hi Worland! Thanks for your aportation.

The same applies to O2 sensors, I made the investment and the truck still with the same problem. I want to change only parts when needed. The computer don't show any sensor failure. If there a way to check the MAF sensor in order to dn;t make an inecesary replacement?

Any help is welcome.

 

Hi Folks!

I just take the mileage after the inyectrs and trotle body cleaning at the dealer. Now i Have 15.8 MPG. HWY When new i usualy got 18 MPG HWY. Before the inyector cleaning the truck get 12.9 MPG HWY. I just fill the tank and I'll take another measurement. I'll post in 2 days when fill again.

Maybe if i do something more of maintenance i can get 1 or 2 MPG more.

 

Maybe clean the MAF sensor. I know they sell MAF cleaner at Autozone/Advanced Auto and maybe at Wal-mart. Follow the directions on the can.

As for cleaning the injectors, they probably just used some injector cleaner. I forget what they use (BK40 or something like that?)? If not, I think the Techron injector cleaner is said to work pretty well.

 

The MAF was already cleaned with the trottle body. Thanks!

 

Hi folks! Also i want to add, when driving some times the motor hesitate a little when acelerating. It's not to often but maybe do it 5 - 10 times a day.

No error codes in the computer.