HighMileage
Albany,NY
- Joined
- Jul 24, 2010
- Messages
- 971
Lately I have a light throttle/light load skip-surge issue going on.
I first noticed that the BLM Value #'s are around 115 in the 8th and 12th cell. (far right,counting across)
Hopefully these 400 frames of numbers can shed some light on this. Steady on the pedal,hold on,here we go on the bucking bull for 400 frames:
Speed: 32-34mph.
RPM: 1,575-1,625.
AFR: 14.8
MAF: 15.9
LV8: 50
TPS: .66v
Clt: 193'F.
IAC: Steady at 58.
Prog Idle: 650
MAP: .12KPA.
Int air: 84'F.
Ign v: 13.3 and steady.
02: Everywhere between .098 and .741 (new Denso 02).
Advance: Varied between 43-45.
Inj pw: 3.8-4.2.
Inj duty: 4.9-5.3%
EGR-0.
X-counts: Took 523 frames to go 0-255. The Delco I had in there went faster. But same skip/surge.
Status: Checked boxes: Closed Loop and BLM Learning.
3rd gear box checked. TCC box checked.
Block Learn Value box constantly changed +/- 10 from 128.
Once past the light throttle/light load "mode",it is nice and smooth. I hear light pops out of the exh while coasting down a hill.
But hit the gaz,and it goes!
Any ideas? Thanks.
Steve. '87 GN,t-tops. Mostly (all?) stock.
I first noticed that the BLM Value #'s are around 115 in the 8th and 12th cell. (far right,counting across)
Hopefully these 400 frames of numbers can shed some light on this. Steady on the pedal,hold on,here we go on the bucking bull for 400 frames:
Speed: 32-34mph.
RPM: 1,575-1,625.
AFR: 14.8
MAF: 15.9
LV8: 50
TPS: .66v
Clt: 193'F.
IAC: Steady at 58.
Prog Idle: 650
MAP: .12KPA.
Int air: 84'F.
Ign v: 13.3 and steady.
02: Everywhere between .098 and .741 (new Denso 02).
Advance: Varied between 43-45.
Inj pw: 3.8-4.2.
Inj duty: 4.9-5.3%
EGR-0.
X-counts: Took 523 frames to go 0-255. The Delco I had in there went faster. But same skip/surge.
Status: Checked boxes: Closed Loop and BLM Learning.
3rd gear box checked. TCC box checked.
Block Learn Value box constantly changed +/- 10 from 128.
Once past the light throttle/light load "mode",it is nice and smooth. I hear light pops out of the exh while coasting down a hill.
But hit the gaz,and it goes!
Any ideas? Thanks.
Steve. '87 GN,t-tops. Mostly (all?) stock.