Fixed finally!!
Thread Starter
Drifting
Joined: Aug 2014
Posts: 1,618
Likes: 174
From: North pole
Fixed finally!!
So i have been chasing this problem for awhile on my 04z..sluggish, poor acceleration..NO codes ever. Had my tech2 and hptuners hooked up to see anything..what i noticed was fuel trims all over the place. o2 sensors seems slow and finally my intake manifold bolts were lose. I changed both upstream o2's, and the maf..oem! Thanks rockauto! I tighten the intake bolts to spec, and by the way i believe that was my problem sucking air bypassing the maf making fuel trims nuts! I have a vararam and never before did i hear this suck air till after i tighten the intake bolts.It is finally fixed.. it feels different.. low end and midrange pull so smoothly.. check your intake mainfold bolts!
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,320
Likes: 3,927
From: Cape Coral, Florida
So i have been chasing this problem for awhile on my 04z..sluggish, poor acceleration..NO codes ever. Had my tech2 and hptuners hooked up to see anything..what i noticed was fuel trims all over the place. o2 sensors seems slow and finally my intake manifold bolts were lose. I changed both upstream o2's, and the maf..oem! Thanks rockauto! I tighten the intake bolts to spec, and by the way i believe that was my problem sucking air bypassing the maf making fuel trims nuts! I have a vararam and never before did i hear this suck air till after i tighten the intake bolts.It is finally fixed.. it feels different.. low end and midrange pull so smoothly.. check your intake mainfold bolts!
