VL400 wrote:Was looking at the S/C bin (CXWK and CXWH) today, the open loop target AFR tables are most likely part of why your seeing knock on lean cruise and regular cruise compared to the NA version. Might be worth getting some more closed loop values in there instead of the ~16 AFR numbers - have a look at the NA version as thats more how you would expect it.
interesting find there mate. never thought that at cruise the open loop table would be used, assumed it would be using stoich and correcting from the lean cruise table. looking at the log the wide band is indicating around 15.7 ish a/f while the commanded a/f line is sitting on 14.7 still at some low speed cruise areas, ive been under the impression that the commanded should also change to match the open loop table as it does when in lean cruise...
anyways ive adjusted all the values in the knocking area of open loop so no values exceed 14.7, log tonight see how it goes.
krusty wrote:Hey Ken. Did you ever get ppk/ km/h running in the XDF? I need to do a diff gear ppk change
isnt that a dash only thing on vt-vy? doesnt the ecu get the speed value from the dash which calculates it from ppk so the ecu never actually sees a ppk value? think the $12p guys have that option but.
hi people.
been trying to nut out a lack of power issue. thinking maybe overly rich might be main part of the prob.
wondering why its so rich in first gear, soon as it hits second it leans out nicely and feels alot more eager, to around 11;1, but first always goes rich and is doey as. is there a way to fix this?
cheers.
Well ive had a play with pe vs rpm multiplier, as thats the only pe multiplier that differs from stock ddrj bin. Pulling the values back abit definately works for trimming a/f back but just not first gear still....really got me stumped as i dont know what the diff between the same x mgc at x rpm between first and second is. Ie roll on wot in first equals 10.5-10.6 a/f but roll on to wot in second equals 11.5...WTF. im starting to suspect that the bosh 044 might be raping the the stock fuel reg giving me choppy a/f line in the logs dips and bumps every where and random rail pressure. I think i need to bite the bullet and fit the b&m fuel pressure gauge thats been sitting in box for a month, and get an nv ram. With nvram i reckon i could nut the fuel tuning out in a good two hour drive. Man im hangin for some sideways launches n shit race your mates 1/8 drag meet coming up, love to be there but my pos would prob get wasted by a stocker 304
Pulling the eeprom out constantly is driving me fuc%ing nuts i shit you not.
sprattzvx wrote:Well ive had a play with pe vs rpm multiplier, as thats the only pe multiplier that differs from stock ddrj bin. Pulling the values back abit definately works for trimming a/f back but just not first gear still....really got me stumped as i dont know what the diff between the same x mgc at x rpm between first and second is. Ie roll on wot in first equals 10.5-10.6 a/f but roll on to wot in second equals 11.5...WTF. im starting to suspect that the bosh 044 might be raping the the stock fuel reg giving me choppy a/f line in the logs dips and bumps every where and random rail pressure. I think i need to bite the bullet and fit the b&m fuel pressure gauge thats been sitting in box for a month, and get an nv ram. With nvram i reckon i could nut the fuel tuning out in a good two hour drive. Man im hangin for some sideways launches n shit race your mates 1/8 drag meet coming up, love to be there but my pos would prob get wasted by a stocker 304
Pulling the eeprom out constantly is driving me fuc%ing nuts i shit you not.
Load
Try dynoing in 1st 2nd and 3rd, you will get 3 different WOT AFRS. same applies with changing the ramp rate but not the gear
sprattzvx wrote:Well ive had a play with pe vs rpm multiplier, as thats the only pe multiplier that differs from stock ddrj bin. Pulling the values back abit definately works for trimming a/f back but just not first gear still....really got me stumped as i dont know what the diff between the same x mgc at x rpm between first and second is. Ie roll on wot in first equals 10.5-10.6 a/f but roll on to wot in second equals 11.5...WTF. im starting to suspect that the bosh 044 might be raping the the stock fuel reg giving me choppy a/f line in the logs dips and bumps every where and random rail pressure. I think i need to bite the bullet and fit the b&m fuel pressure gauge thats been sitting in box for a month, and get an nv ram. With nvram i reckon i could nut the fuel tuning out in a good two hour drive. Man im hangin for some sideways launches n shit race your mates 1/8 drag meet coming up, love to be there but my pos would prob get wasted by a stocker 304
Pulling the eeprom out constantly is driving me fuc%ing nuts i shit you not.
Load
Try dynoing in 1st 2nd and 3rd, you will get 3 different WOT AFRS. same applies with changing the ramp rate but not the gear
Thought about load, but its a big difference in a/f for a little diff in load. Second and third a/f is close. Might be fuel hardware issue somewhere. Could dodge it up using pe vs time back the multiplier of a touch for the first few seconds might fix the standing starts but would screw with second and third rollon make em too lean i spose.
I thought about the initial pe shot could be too much but that should be consistent.
This could be a good excuse.for some shiny new fuel rails, new flash adjustable reg and lovely new 60lb flow matched squirters. Haha just to eliminate these items you know how it is im sure the wife will understand when i explain the benefits of e85
race your mates 1/8 drag meet coming up, love to be there but my pos would prob get wasted by a stocker 304
