91chevz71

Hey guys-
As some of you know, I had some NB O2 issues. That is pretty much behind me, knock on wood. I made a log today of driving around and I would like for you guys to tell me what you see. Rbob- thanks again for a great product
I've made my comments in the pictures of what I THINK is going on. Appreciate it, guys!!!
Thanks,
Mike


Here's just cruising at about 45 MPH.



Here's a decent acceleration. One thing I haven't been able to figure out is why I have the double OD shift feel. The final shift at 18 seconds IS overdrive, I can feel it. The premature 3-4 shift feels like something else.

RBob

iTrader: (1)

91chevz, nice graphs of the cruise & accel. You need to shoot an email to update@dynam. . . (anti-spam, please make it the whole domain name) and get the latest WUD version. It will have a scroll bar at the bottom of the graph. And allow the graph to the scrolled left & right. It is also tied to the main analysis window so they stay in sync. Also has a diag window with raw sensor values.

The two 3-4 shifts: one is the TCC locking up. Probably the last one as that is about the MPH it will allow lock in OD.

As for the AE, or AFR values, unless it can be felt don't worry about it. OTOH, for a possibly quicker dTPS response, there is an option bit that will make it async. Shuffle, search, here it is: option word 6, with this description: AsTAE

Setting that bit (which is a must on port injected setups), has the dTPS AE as async injection. Note that it is NOT affected by the AE vs RPM table. However, the dMAP AE is still sync, and is still affected by the RPM table.

Just something to try to see if it helps out.

RBob.

91chevz71

thanks Rbob. I'll send you an email later on for the update

91chevz71

talking about the slipping shift, am I right in thinking the AFR climbs because of the slipping and prolongated shift? Not enough MAP change to give it AE?

RBob

iTrader: (1)

Not necessarily, what ever the change in MAP is, is. If the engine needs more AE with the change in MAP, just add a tad bit more.

RBob.

Ronny

iTrader: (1)

Quote: As for the AE, or AFR values, unless it can be felt don't worry about it. OTOH, for a possibly quicker dTPS response, there is an option bit that will make it async. Shuffle, search, here it is: option word 6, with this description: AsTAE

hhhmmm. How is the quantity of AE changed? We know we can spread that set quantity over a longer period of time or bring in in for lesser duration or add more at a specific RPM. Would the Ae tables need to be changed with asynch AE?

I likewise have a 7.4L TB but a manual trans. I have often commented that if I blip the engine in neutral there is this annoying lag with a lean spike in WB datalog that I cant get rid of. I tried differing AE combos but none seemed to work. Maybe I learned something(again).

91chevz71

did some VE learns today with the new O2 settings and some upped-AE during my errand-running. Wow what a difference. AFR's hang at 14.4-14.6 all the time and it really hauls. I'll get some graphs up later.
Helps to have VE dialed in, DUH

RBob

iTrader: (1)

The async dTPS AE isn't available on the Classic version. It was added to support a port setup with the Port Mod. Just that it also works on TBI. With that option set the dTPS AE is still adjusted the same as it always has been. Just that the RPM modifier table has no affect.

The quantity of AE is by the PW table. And the duration of AE by the filter table. Although they do affect the other. Then final tweaked by the RPM table. If you are blipping from idle it may also be from the cam, or from lack of heat in the intake, or the VE is a little low, or it just isn't enough dTPS AE PW.

RBob.

91chevz71