Smoothing VE tables ??
#41
I was wondering when you had time to pee and eat, let alone mod your truck
You'll notice thought that I'm usually one of the first to answer your questions...meaning that I'm up at those times too (I don't have an excuse...I just keep wierd hours naturally)
You'll notice thought that I'm usually one of the first to answer your questions...meaning that I'm up at those times too (I don't have an excuse...I just keep wierd hours naturally)
#42
Originally Posted by dewmanshu
Hmmm...my understanding of the MAF failing is OFLA. I am not interested in staying in open loop. Especially with emmission testing and those codes being there. I am not understanding why you can't kill the codes.
I have a radix yelo, IAT is in the blower.
Tranny limp mode to my understanding is crazy pressure tables which is under the "Trans Diag" tab, just disable them.
I have a radix yelo, IAT is in the blower.
Tranny limp mode to my understanding is crazy pressure tables which is under the "Trans Diag" tab, just disable them.
#43
Originally Posted by dc_justin
AutoVE tutorial as well as the VE tuning by LTFT tutorial compiled by one of the members here both mention this.
#44
Originally Posted by dc_justin
How often do you have to get your emission test? When I lived in Ghettosburg (Gaithersburg) a couple of years back, I never had to have my 98 T/A tested, just had to subject it to the 3 hour one-time safety inspection from hell. 

#45
Originally Posted by Yelo
I was wondering when you had time to pee and eat, let alone mod your truck
You'll notice thought that I'm usually one of the first to answer your questions...meaning that I'm up at those times too (I don't have an excuse...I just keep wierd hours naturally)
You'll notice thought that I'm usually one of the first to answer your questions...meaning that I'm up at those times too (I don't have an excuse...I just keep wierd hours naturally)
I do notice you are on top of answering me right away. That one day I was supicious you were tailing me!
#46
Originally Posted by dewmanshu
Right, the VE tuning guides say this so that you can stay in open loop and not have your o2's trying to control your fueling(part throttle). Speed Density is just MAFLESS right? Has nothing to do with open loop or not. So, I want to be in SD and have my NBO2's operational and as a bonus would love to pass emmissions(OBDII plug in check). No?
Failing the MAF will drop you into the low octane spark table and the VE table for fueling (unless HPT custom OS has dual SD spark tables like EFI Live does, which it probably does).
Your best bet would be to run around with the DTC enabled, MIL disabled, then when it comes time to go for your plug test, re-enable the MAF a couple of days beforehand and go get checked out.
#47
Originally Posted by dc_justin
Having the MAF fail won't kick you into open loop. I ran closed loop SD for quite a while with my setup. To be in OL, you need to disable LTFTs, STFTs, STFT Adjustment in OL and a few other parameters (or disconnect your O2s).
Failing the MAF will drop you into the low octane spark table and the VE table for fueling (unless HPT custom OS has dual SD spark tables like EFI Live does, which it probably does).
Your best bet would be to run around with the DTC enabled, MIL disabled, then when it comes time to go for your plug test, re-enable the MAF a couple of days beforehand and go get checked out.
Failing the MAF will drop you into the low octane spark table and the VE table for fueling (unless HPT custom OS has dual SD spark tables like EFI Live does, which it probably does).
Your best bet would be to run around with the DTC enabled, MIL disabled, then when it comes time to go for your plug test, re-enable the MAF a couple of days beforehand and go get checked out.
#48
Originally Posted by dewmanshu
Ahhh. So it's the combination that does it. Having the lt's, st's, and maf disabled is what does it huh? That's all I have. Well I have disabled dfco as well. Yes, I have two sparks and both are the same obviously. Hmmm. I am gonna reenable my lt/st/dfco on the way home today. Interesting.
If HPTs custom OS allows you to retain both spark maps in SD mode, it would be in your best interest to lower the values in the low octane map by 5% or so to give you that safety net in the event that you need it.
#50
Originally Posted by dc_justin
Let me clarify on the dual maps. Stock OS, when you go into SD mode, the High octane map becomes moot, as the PCM will only run off the low octane. With EFI Live's custom OS, they add in the ability to run off of the high octane map in SD mode, which will give you the safety cushion of being able to still have the adaptive spark scaler in the event you have a bad tank of gas or some other factor causes you to knock excessively.
If HPTs custom OS allows you to retain both spark maps in SD mode, it would be in your best interest to lower the values in the low octane map by 5% or so to give you that safety net in the event that you need it.
If HPTs custom OS allows you to retain both spark maps in SD mode, it would be in your best interest to lower the values in the low octane map by 5% or so to give you that safety net in the event that you need it.
Originally Posted by HP Tuners, LLC
The 2bar Speed Density enhancement includes:
- 2bar MAP sensor support (calibration capability for 0-5V linear MAP sensors)
- retains full 5 kPa resolution in non-boost regions (2bar pre 04/05 LS1)
- 5 kPa resolution in boost regions (2bar pre 04/05 LS1)
- 10 kPa resolution in boost regions (3bar and 2bar post 04/05 LS1)
- secondary VE table not used (if applicable)
- new MAP referenced "Boost Enrich" table
- new openloop MAP threshold
- Dual (High and Low Octane) Spark table support
- Speed Density mode only
- VCM Scanner histogram automatically recognises and adjusts for 2bar/3bar feature
- new 2bar/3bar MAP PID for VCM Scanner




