Mid + High Fuel trims wont move

[domenico_169]

Im trying to tune with a maft, and my laptop, and i cant get my mid and high fuel trims to move. my low moves but no matter what the others wont move... but if i play with them i definetely notice a difference in the way the car runs... what could be wrong?

 

[domenico_169]

no one has ever had this problem? should i try using a palm or something?

 

[liquordrunk]

no one has ever had this problem? should i try using a palm or something?

have you tried going to the MAf forums on www.fullthrottlespeed.com

 

[Irrational]

what do they read?

 

[dnhieu]

o2 sensor might be bad. at least thats my problem

 

[92tsifwd]

quote: o2 sensor might be bad. at least thats my problem quote That is my problem too.

 

[mullet]

Im trying to tune with a maft, and my laptop, and i cant get my mid and high fuel trims to move. my low moves but no matter what the others wont move... but if i play with them i definetely notice a difference in the way the car runs... what could be wrong?

Hi Domenico,

seems we have a similar set-up, and I'm also having the same problem. I'm using TMO software, and I never see my fuel trims change!

I did read that Fuel trims won't change if the coolent temp is below a cetain temp ... have you heard that? I do have a fluidyne rad so that might explain it.

 

[domenico_169]

i dunno, i have stock rad, i am gonna see if someone in edmonton is willing to hook up thier palm setup in my car, and see what happens. i need to tune this damn thing, its ridicilous.