HUGE gains with MAF removed completely...
07-21-2006 | 11:17 PM
#12
Originally Posted by dc_justin
In HPTuners you can't see Grams/Cyl any other way than by deriving it from the MAF?? 
not sure what he meant. I haven't had my MAF plugged in for about 2 months, I see grams/cy. How else would your spark table work?
07-22-2006 | 12:43 AM
#15
Originally Posted by sliderbkt
Yelo, I replied on tech too, but here it is again.
You can pull the sensor out of the maf with a pair of needle nose pliers. Then just drill a small hole and install the sensor wherever you want. I put mine just infront of my TB so that it would read the temp after my meth injection. I have an aluminum tube, so I used JB Weld. It isn't the neatest way, but it worked pretty well.
You can pull the sensor out of the maf with a pair of needle nose pliers. Then just drill a small hole and install the sensor wherever you want. I put mine just infront of my TB so that it would read the temp after my meth injection. I have an aluminum tube, so I used JB Weld. It isn't the neatest way, but it worked pretty well.
I'll have to look it up but if you want to know which 2 wires it is let me know and I'll look it up.
07-22-2006 | 12:50 AM
#16
Originally Posted by dewmanshu
not sure what he meant. I haven't had my MAF plugged in for about 2 months, I see grams/cy. How else would your spark table work?You'll still get the air flow in your logs and IAT readings will still go to the VCM (incase of high IAT, it will retard timing) but the computer won't recoginize the MAF. Did that make since?
07-22-2006 | 01:09 AM
#17
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Joined: Jun 2004
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From: Edmonton, Alberta, Canada
Originally Posted by Kano
did your timing change any?
which other tables reference the maf sensor that may have been affected?
which other tables reference the maf sensor that may have been affected?
Thanks
D
07-22-2006 | 01:37 AM
#18
Im Pro SD myslef for my own reasons. But I also think a properly tuned MAF setup is just as good on a mild setup and is not a restrication. Not sure what you found but I'm glad its working for ya 
. I am running my IAT sensor in where my EGR used to be in the Intake with good results for hot restarts, but its still work in progress.
. I am running my IAT sensor in where my EGR used to be in the Intake with good results for hot restarts, but its still work in progress.
07-22-2006 | 01:58 AM
#19
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Joined: Feb 2003
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From: Geneseo, NY
OK....here's the answers
dc_justin: see my response to dewmanshu below...
dewmanshu: Tell me how to set the histograms in HPT to read a table that references a sensor that isn't there anymore and I'll gladly fix it (I'm being serious here, NOT sarcastic)....HOW is g/cyl derived if not from the MAF ??
KY_BOB: It's pins A&B in the MAF harness....and I already have an IAT sensor on order
EVERY histogram in HPTuners that references g/cyl will only show one line of data instead of filling in the whole table...if someone can tell me how to fix it I'll galdly do so
I've already got the MAF disabled....I removed it to remove the restriction that it causes in the intake tract
1slowsilverado: Yeah...that's where mine is going too
dc_justin: see my response to dewmanshu below...
dewmanshu: Tell me how to set the histograms in HPT to read a table that references a sensor that isn't there anymore and I'll gladly fix it (I'm being serious here, NOT sarcastic)....HOW is g/cyl derived if not from the MAF ??
KY_BOB: It's pins A&B in the MAF harness....and I already have an IAT sensor on order
EVERY histogram in HPTuners that references g/cyl will only show one line of data instead of filling in the whole table...if someone can tell me how to fix it I'll galdly do so
I've already got the MAF disabled....I removed it to remove the restriction that it causes in the intake tract
1slowsilverado: Yeah...that's where mine is going too
07-22-2006 | 03:12 AM
#20
Originally Posted by Yelo
OK....here's the answers
dc_justin: see my response to dewmanshu below...
dewmanshu: Tell me how to set the histograms in HPT to read a table that references a sensor that isn't there anymore and I'll gladly fix it (I'm being serious here, NOT sarcastic)....HOW is g/cyl derived if not from the MAF ??
dc_justin: see my response to dewmanshu below...
dewmanshu: Tell me how to set the histograms in HPT to read a table that references a sensor that isn't there anymore and I'll gladly fix it (I'm being serious here, NOT sarcastic)....HOW is g/cyl derived if not from the MAF ??
Without knowing exactly how it is positioned and worded in HPT, each OS has at least one PID dedicated to airmass per cylinder. Mine has 2, one of the 2006's I tuned seemed to only have one. One for the Airmass value used for fuel and spark calculations and such, and another that is defined as the airmass per cylinder - Speed Density. In EFILive, the "raw" PID name for these two (on my 2003) are: GM.CYLAIR_DMA and GM.DYNCYLAIR_DMA.
I never use the MAF derived CYLAIR for my tables, as that is not what the PCM will use for it's calculations, it uses a blend of the two below 4000 rpms in the stock calibration, MAF only above that.