That's correct. High temp = low resistance = low counts. Check the lookup table in the disassembly and see what's been staring at us all along. ;)
I just haven't had time to look... so it's accurate? Just the slider in TunerPro is backwards?
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
Apparently the slider action is backward. Moving it left usually generates a minimum value but for the inverse coolant temp it's backward. But I never looked at the slider. lol... I don't use TP much and I was focused on the equation. Apparently the slider is tied to the hex value rather than the converted value? Unsure if that can be fixed. Uhmmmm.... time for input from the author.
And what this also means is that setting the value to "max" hex actually enabled EGR at the minimum possible temp! 'Splains why I had a vague recollection of having to set this to zero. Too bad I couldn't find anything in my notes to back it up waaay back whe4n this all started.
Last edited by 1project2many; 04-12-2013 at 05:09 PM.
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
So, you are saying that the .xdf parameters are wrong in the way they are converting the hex value? Then this is a separate issue from the .adx displaying an inaccurate temp, right?
1978 Camaro Type LT, 383, Dual TBI, '7427, 4L80E
1981 Camaro Z-28 Clone, T-Tops, 350/TH350
1981 Camaro Berlinetta, V-6, 3spd
1974 Chevy/GMC Truck, '90 TBI 350, '7427, TH350, NP203, 6" lift, 35s
ADX temps are accurate.
All XDF Parameters that use the AD count for temp are wrong until this conversion is installed. They are backwards!
Looks like all temps in dissasembly comments are also way off?
Although this conversion developed here makes the slider in TunerPro operate backwards, the numbers/temps are accurate. Within a few degrees for all the one's I've checked!
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
With this new found, or res-erected and explained info is making sure that temps in dissasembly are marked correctly. If it is 1k pu is it? If it's not marked? Should it be?
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
Okay Mark, I guess this means that I can change the comments in the ASDU and ASDX asm files to correct them. I need to look at every place that temp is used and see if it is converted or raw A/D value and make the comment reflect correctly. I am still not convinced that it will solve your EGR problem, but since you apparently have a handle on it now, give it a try. If it still dies, look at fueling. I think you may find the fuel gets cut. Let me know.
Square body stepsides forever!!!
1978 Camaro Type LT, 383, Dual TBI, '7427, 4L80E
1981 Camaro Z-28 Clone, T-Tops, 350/TH350
1981 Camaro Berlinetta, V-6, 3spd
1974 Chevy/GMC Truck, '90 TBI 350, '7427, TH350, NP203, 6" lift, 35s
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
I'll be testing it on EGR soon. But it's obvious it was being adjusted the wrong way.
I spent a lot of time yesterday with XDF and hack, more questions then answers right now and so many temps have so many different conversions? Commented temps in hack are all over the place. I think most important for accurate temps would be PE enable, DFCO Enable, Hiway LC Enable, Closed Loop Enable. We have EGR enable now that was clearly marked 1k, so maybe that will help track down how other temps are handled? SOme temps should probably never be needed or touched.
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
Bookmarks