3.4/3500 datalogs

[923.4v6]

I'm running 24 Lb injectors, Don't have an egr or an air pump, there is no emmision around here. That a1 has the Idle BPW as a function of Air Flow in the Flags and Switches, and the datalogs shows a temp around 200 in column "T" I believe you was looking at column "X" which is the start temp. You said I can run other xdf's does that mean I can run anyone of. Which xdf do you use and i'll try it at least while your trying to help me so were on the same page. The car is also a 5-speed if that affects anything

[torq455]

haha oops! sigh...you're right. i was looking at the start up temp. i see you have KR with a little blip in the throttle. that's strange. i'd expect that if you were to wing it. 24 # injectors still shouldn't need the BPC set that low. i still don't understand why the 02 reading with throttle.

what is the 4 letter code on your stock chip? my code is for a 94 3.1. it's the latest update to the 93 3.1's chip from what i understand.

i found i can keep my current bin and change xdf files. so far changing xdf won't change the values in your bin. but, if you change your bin and not the xdf, then the values will change--which makes sense.

these are mine:

[923.4v6]

my stock chip was a BAWX, I have a g1 adapter on the way and going to get a computer for a dis car to make sure that isn't the problem. I hate to put this much $$ in something and not get to use it.

[923.4v6]

got the g1 and had problems and found out I installed it wrong today will try again tomorrow. Scott0999 showed me a picture.

[torq455]

don't tell me all this happened due to the g1 installed wrong. hehe

[923.4v6]

No its still doing it I put the g1 adapter on and attached the memcal, bought a new 1 wire o2 sensor that supposed to be on the car and this is what I have. I'm going to have one of my ecm's tested tomorrow. The log actually looks worse than with the heated o2.

[torq455]

yeah....you're getting cell 2 which is during deceleration. something is waaaay off. good idea to have the computer checked. you only have had either BLM/INT of 128/128 or 128/122, and the 02 is 446 mV or lower.

[923.4v6]

May have figured something out. While testing my grounds at the ecm plugs with my meter I tested the o2 signal again except I shoved the meters prong down inside of the ecm's plug and I believe it may be reading right which means the o2 signal wire wasn't getting a good connection to the ecm. Here is my last datalog see what you think and what you would start at first.

[torq455]

um...where is your datalog? haha

[923.4v6]

here it is.

[torq455]

much better! nice find! now you have lots of tuning to do. i see you locked your BLM. good to see INT is all over. the 02 seems slow and doesn't jump around like it should, but seems to be actually reading now.

[923.4v6]

here's 2 logs 111 is the 1st, 222 has a couple adjustments. What do all of you think? I have a big jump from 70 kpa to 80 kpa in my ve table in the 1600-2400 rpm range but it seems to need it. If it's not to far off what is the next step? I don't know what a log should look like as far as the variance's go.

[torq455]

after looking at the two, i'd say you took some fuel out. your log has a fast sample rate. i'd take that down a little. i have mine set to 4 Hz. 4 times a sec seems fast enough for now. you are still running on the rich side, but not horrible. my blm was below 110 most of the time. the ultimate goal is 128/128, but that's impossible. INT will eventually come close to the 128 given any BLM. if INT won't come up anymore, then BLM just might, thus lowering the value of INT. depends on where the parameters of both are operating at. if you can get a blm around 128, like 125-132, then that's really close. all you are doing at that point is preventing the computer from taking forever to reach the correct fueling. INT will jump a lot. what you have to ask is, for how long. if INT goes up to 140 then quickly comes back down, I'd worry about that later. If it stays, then you need to tune. i figure the jump to 140 that drops down right away has something to do with accel enrich and the duration of it. consider it a "pump shot" in the caburator days. you have the amount of extra gas to cover the throttle change and how long it lasts. what you should do now, is go to the min and max BLM value and change them both to 128. that way the INT makes all of the adjusting and is easier to tune. just be sure to go slowly. i have found the changes aren't immediate. be patient! it takes a while. hope that helps.

[923.4v6]

Ok i'll change my min/max blm to 128 and try tuning at that. Is doing that kind of trying to get a finer tune? I think it would be nice if the ve table went up every 200 rpm's and the map went up every 5. There isn't an a1 mask that does this is there. There is actually a 8d-saujp-v4a that does it and also goes up to 6400 rpm's.

[torq455]

not really a finer tune, but easier to know how much to adjust. i too wish the tables were in smaller increments. hard to tune for and average of 4 blocks.

here's what Dave told me:

S-AUJP is a N/A code for the SBC running on a '7730 ecm. I was working on a bin to try and get it to run the '660. The spark advance tables are the same but the VE tables are 3D all the way up to 6400 RPM which will help out with WOT tuning. Somewhere at home i have an excel sheet that you can put your $A1 VE tables into and it regenerates the 2 tables needed for AUJP. I'll check my server and make sure it's working right (if you want to switch).

It should be a matter of setting a few things like the initial spark advance, cyl select and any VE/BPC stuff.. I never got the chance to double check the Fbody ECM pinout VS ours to make sure everything was in the same place.. was planning on that this spring.

I'll probably start a tuning thread on it once i get things rolling, it could be a blessing.. or a huge pain in the ass. lol