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Tuning DF code [hybrid] [have datalogs] help needed plz :( hello everyone, im currently tuning my 1993 Gp i rebuilt a 2.8 block/crank that i had in my old 88 cutlass before it got written off, so i pulled the motor and put it into my 93 gp, during the swap i installed a 3100 topend, rebuilt the 4t60-e transmission and changed the fdr to 3.73 and put in a 2800 stall Torque converter the block has a comp cams 260H cam and the 3100 1.6 roller rockers. i have all new sensors except tps, cts, iac and map which are all in good condition, so i have gotten as far as starting it up and getting some datalogs from it... i usually hang out at 60degreev6, and posted my datalogs there, but im not really getting any help with my tuning :P so i come here, i realize this is an F body forum, but i have been reading this forum for a couple years now, and there are so many knowledgable people i thought i would try my luck here :) so here are my specs... i have disabled egr, and ccp and "calculate bpw at idle as function of airflow" burnt the new chip installed and took logs my cars specs its a 1993 pontiac grand prix 9396 ecu running aubu df code 2nd gen 2.8L crank/block 2000ish 3100 topend (small runner i think) port&polish heads factory manifolds comp cams 260H 1.6 rollers has 496 lift 4t60-e 3.73 2800 stall torque converter factory cat, and mufler (for now) gonna throw on the hooker muffler and put in a "test pipe" in place of the cat im in canada so i dont have to worry about emissions LOGS: you can download the 3 i have are zipped scroll down, click download for free if the link or zip file doesnt work let me know and ill post up the csv's only http://www.filefactory.com/file/c40ad7 there is an idle@2000 rmp idle and idle in gear Thank you Dan |
im pullin my hair out here....:gocrazy: lowering the values at 0%egr makes it run worse, raising them makes it run worse, i dunno... |
Can you describe the problems you're having? Pointing us to logs is good, but it might help to have more specifics on the problem(s) you're trying to solve. |
I guess it looks a little rich at those loads (BLM 100-105, want to be about 128), and the IAC counts are a little high. And the spark advance is a little low at 2000 with no laod. Anything else? |
ya this things all over the place... kpa at idle is 60+ at 2000rpm no load its like 35 im new to tuning so i dont really know where to start i was talking to someone that said i should add all map related references from the df document into tunerpro i found these (in DF document, and not already in df.xdf) Code: 0872 30 48 KIDFMAPH 28 KPA MAP ABOVE WHICH CAN BECOME IDLE FUELlooks like i might want to add this one for sure 0873 64 100 KIDFMPL 47.3 KPA MAP BELOW WHICH CAN BECOME IDLE FUEL seeing as im running 60 kpa at idle, everything is off balance might want to raise this to like 70 kpa i dont know the math to figure out the equation in tunerpro. mangus, i would like to add the following references into tuner pro but need a little help Code: 0872 30 48 KIDFMAPH 28 KPA MAP ABOVE WHICH CAN BECOME IDLE FUELi have no idea what i should adjust these too there should be 2 of them in df code for the adjustment of injector flow rates only 1 is in tunerpro "injector flow rate" this is in gal/h and is currently at 2.67, im guessing since im using the 3100 injectors there going to need to be adjsut alittle higher same with "0865 0260 608 KINJXBC5 0.2375 SEC/GM" once added to tunerpro is in grams/sec, and im guessing i should raise those to refelct values of the 3100 injectors im thinking its a good place to start, to get the computer to see what its running for fuel anyways? :P lol ???? MangusCan you describe the problems you're having? Pointing us to logs is good, but it might help to have more specifics on the problem(s) you're trying to solve. pressing the gas pedal to rev the engine : from idle it will hesitate on tip in and then rev but with no power and it doesnt want to rev very high or if i just tease it and tap the pedal it kinda just hesitates and the idles raises a bit then drops down, i notice the iac counts raise alot so im guessing thats why the idle raises a bit then goes down when i put it into gear: it allmost wants to die, it will sit there and dance up and down up and down now when i lower the 0%egr it does all this but worse x5 same with raising the 0%egr but noticable smoke from exahaust and it deffinatly wont idle and if it does idle it sounds mega plumpedy plump like alchohol funny car lol i change it by like 10 the ecm wont take my 27sf512 chips, no matter what runs like its crazy rich, with smoke from the exaust, and i dont think it goes into closed loop i never ran it long becuase i dont want to wash out the rings or anything, like its super crazy rich so i am using the at29c256 chips and i only have 1 left, my willems is eating them up for some reason so this is why i am mega frustrated, and am looking for help lol :eek: so to sum it up im trying to solve my rich problem of blms at 100 id like to adjust the injector values in the code to reflect the proper 3100 injector values, but i need to add it into tunerpro which i dont know how sorry for the long post |
well im thinking i have some sort of overlap false lean issue going on i found some intresting refereces in the df.doc 0DD3 1C 28 KFO2DLT 0.124 VOLTS DELTA VALUE TO FORM RICH-LEAN WINDOW FOR ADO2AF ("FAST O2") 0DD4 08 8 KHGTH 0.035 VOLTS MIN ERROR TO IMPLEMENT INT CORRECTION 0DD5 64 100 KIDOXTH 0.442 VOLTS RICH/LEAN O2 THRESHOLD WHEN IN IDLE 0DD6 70 112 KIDLZU 0.496 VOLTS ZEREFU VALUE WHEN IDLING 0DD7 58 88 KIDLZL 0.39 VOLTS ZEREFL VALUE WHEN IDLING but they are not added into df.xdf(definition file), and im affraid i donot have the knowledge to add them properly :( id like to try to lower the o2 mv constants @ idle and see if that will help correct my surging, stalling, and hesitation on tip in of throttle anyone good enough at math to help me figure out what the "equation format" would be to enter into tunerpro and are all these 8bit? |
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