sac811
August 29th, 2020, 01:41 AM
Basically its been a while since I've messed with anything related to my tune and I've lost almost all my knowledge on it because of that.
My problem is that when I put the truck in drive and get up to 2-3 mph (giving it no throttle) it just falls on its face, idle drops, sometimes starts surging, sometimes just dies. Same issue occurs sometimes when I come back down to speed in the same mph area. This problem is made worse when the A/C is on. When throttle is given there is no issue.
Other than this one area the truck runs pretty well.
I'm not looking to adjust the tune to any real degree other than to just make this dying or surging point easier to daily drive through. A bandaid is fine I really don't care, I just want it easier to drive for the time being.
At a later point I may want to properly tune it out, but I just don't have the real time or desire to do more right now.
Current tune is attached below.
It is a 1999 GMC Sierra regular cab with a 6.0 lq9 with ported 317 heads, 222/224 .6** lift, full bolt ons, ported NNBS intake, 92mm fast cable throttle body,1 7/8 headers 4" single exit, etc.
23476
My problem is that when I put the truck in drive and get up to 2-3 mph (giving it no throttle) it just falls on its face, idle drops, sometimes starts surging, sometimes just dies. Same issue occurs sometimes when I come back down to speed in the same mph area. This problem is made worse when the A/C is on. When throttle is given there is no issue.
Other than this one area the truck runs pretty well.
I'm not looking to adjust the tune to any real degree other than to just make this dying or surging point easier to daily drive through. A bandaid is fine I really don't care, I just want it easier to drive for the time being.
At a later point I may want to properly tune it out, but I just don't have the real time or desire to do more right now.
Current tune is attached below.
It is a 1999 GMC Sierra regular cab with a 6.0 lq9 with ported 317 heads, 222/224 .6** lift, full bolt ons, ported NNBS intake, 92mm fast cable throttle body,1 7/8 headers 4" single exit, etc.
23476