mystery solved ls1edit and locked ltrims
Thread Starter
Joined: Nov 2001
Posts: 7,903
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From: Cleveland, OH
mystery solved ls1edit and locked ltrims My ltrims are locked by Ed...no way to adjust them cause they are LOCKED. I guess thats a table that ls1edit cant get too. I keep showing crazy strims cause the pcm is trying to compensate for ltrims that were locked with 36# injectors. I now have 42# and it just aint gonna work. Turbotech people wanting to get ls1edit need to keep this in mind as I have changed every table there and the ltrims dont move
Thread Starter
Joined: Nov 2001
Posts: 7,903
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From: Cleveland, OH
Re: mystery solved ls1edit and locked ltrims Well maybe thats not the issue but if we cant unlock/lock the ltrims for the single turbo....what can we do? Noone seems to have an answer <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />
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Thread Starter
Joined: Nov 2001
Posts: 7,903
Likes: 1
From: Cleveland, OH
Re: mystery solved ls1edit and locked ltrims I loaded a file from a stock m6...changed the injector/maf tables to match my car. The ltrims then moved to -8.6 and the strims were -1.6 and then they just STOPPED moving. Really weird. This was at idle
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From: College Station, Tx
Re: mystery solved ls1edit and locked ltrims If you have no l-trims action at any throttle position then effectively the car is in open loop (since you have no "feedback" to the fuel side of the system to "close" the loop). You can achieve the same thing by raising the temp to enable closed loop.
If the l-trims are only locked at WOT then this isn't a "Table" you can edit but a byte patch Ed has made to the runtime code itself (not altering a lookup table, but rather the flow of the program itself). This is a common mod and has been done on GN's and chip based f-bodies/vettes for awhile, and more recently LT1's.
If the l-trims are only locked at WOT then this isn't a "Table" you can edit but a byte patch Ed has made to the runtime code itself (not altering a lookup table, but rather the flow of the program itself). This is a common mod and has been done on GN's and chip based f-bodies/vettes for awhile, and more recently LT1's.
Re: mystery solved ls1edit and locked ltrims Chris....I thought you could just set the BLMs to 128 and this would lock the LTrims to zero. At least this is what an LT1 tuner told me.
You are right though, my car would never go into closed loop with the single turbo tuning done by Ed. This was intentional to keep the computer from "spazzing out" on the imbalanced O2 readings fromt the single turbo setup.
You are right though, my car would never go into closed loop with the single turbo tuning done by Ed. This was intentional to keep the computer from "spazzing out" on the imbalanced O2 readings fromt the single turbo setup.
TECH Addict
Joined: Nov 2001
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From: College Station, Tx
Re: mystery solved ls1edit and locked ltrims blm at 128 = ltrim at 0 - that is just 2 ways of saying the same thing.
A blm of 128 is perfect. As your BLM's increase you are adding extra fuel, so you are running lean. Same with L-trim's - a 0 percent is perfect, and as you add extra fuel you go to positive.
It's just sorta a "unit" difference.
The trick is, how do you "lock" the blm's at 128? With LS1 Edit there is no way - it takes a patch to the actual code to do this normally.
In LT1's, GN's, etc. this was done at WOT to keep fueling consistent. if your l-trims are always 128 (0 percent) at WOT even if you have positive values at part throttle then your's are locked. If they are ALWAYS 128 (0 percent) you are probably in open loop mode.
A blm of 128 is perfect. As your BLM's increase you are adding extra fuel, so you are running lean. Same with L-trim's - a 0 percent is perfect, and as you add extra fuel you go to positive.
It's just sorta a "unit" difference.
The trick is, how do you "lock" the blm's at 128? With LS1 Edit there is no way - it takes a patch to the actual code to do this normally.
In LT1's, GN's, etc. this was done at WOT to keep fueling consistent. if your l-trims are always 128 (0 percent) at WOT even if you have positive values at part throttle then your's are locked. If they are ALWAYS 128 (0 percent) you are probably in open loop mode.
Re: mystery solved ls1edit and locked ltrims Yep! I'm pretty sure that is how Ed tunes for the single turbo setup. He has access to all the tables. I think you can do this with LT1 edit? I know you can't with LS1 Edit yet. Maybe one for Ken to work on.
Todd
Todd
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From: Raleigh, NC
Re: mystery solved ls1edit and locked ltrims </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Terry Burger:
<strong>What a PCM table missing from LS1EDIT? Say it ain't so...</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Hi, Terry... is this another scam you are going to warn us about on the scale of the Incon fiasco? <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
If so, I missed you ropening remarks... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
<strong>What a PCM table missing from LS1EDIT? Say it ain't so...</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Hi, Terry... is this another scam you are going to warn us about on the scale of the Incon fiasco? <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
If so, I missed you ropening remarks... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Re: mystery solved ls1edit and locked ltrims i recall ed telling me he did not lock mine.. interesting to see how it will turn out when i go to edit it on my own..
how much do blank pcm's run? anyone vend them?
how much do blank pcm's run? anyone vend them?
