Datamaster Scan Reading..
Drifting
Joined: May 2003
Posts: 1,730
Likes: 1
From: Charlotte NC
St. Jude Donor '05
Originally Posted by Dougs 90
Anyone wanna take a look at mine? Give me an idea if and where I need to start. I would appreciate the help!
Thanks,
Doug
Thanks,
Doug
Ok,
It looks like your VE tables haven't been touched especially for the cam. You need to reduce the low MAP By pretty much the whole VE table until your BLMS get in line at 118-134 or so. (Or average 128..is the better way)
You have quite a bit of fuel economy and performance left in the car. Its sitting completely fat the entire time. You need to be careful as it is because you could be washing out the cyc walls.
Thread Starter
Burning Brakes
Joined: Feb 2003
Posts: 1,218
Likes: 0
From: Rolla Mo
Originally Posted by Alvin
Ok,
It looks like your VE tables haven't been touched especially for the cam. You need to reduce the low MAP By pretty much the whole VE table until your BLMS get in line at 118-134 or so. (Or average 128..is the better way)
You have quite a bit of fuel economy and performance left in the car. Its sitting completely fat the entire time. You need to be careful as it is because you could be washing out the cyc walls.
It looks like your VE tables haven't been touched especially for the cam. You need to reduce the low MAP By pretty much the whole VE table until your BLMS get in line at 118-134 or so. (Or average 128..is the better way)
You have quite a bit of fuel economy and performance left in the car. Its sitting completely fat the entire time. You need to be careful as it is because you could be washing out the cyc walls.
First off thanks...
What does it mean to wash out the cylinder walls?
To lower the low MAP where do I start, which table/s?
Thanks,
Doug
Thread Starter
Burning Brakes
Joined: Feb 2003
Posts: 1,218
Likes: 0
From: Rolla Mo
Datamaster Scans Help...
I have installed a heated O2 sensor today, I have scans before and after the install on my webpage. You can just click on before and after to download them. It looks to be a real mess I would appreciate some help in sorting all of this out. Per Alvins suggestion I am going to start by lowering the VE tables. (thanks Alvin) I appreciate any and all who are willing to take me under their wing and teach me! I have printed out the ANHT hack and the 727 code for reference. One step at a time I say...lolol 
Oh yeah tat reminds me, I found the piece of my memcal I cut off and it said ANHU, is there a big difference between ANHT and ANHU?
Thanks,
Doug
Oh yeah tat reminds me, I found the piece of my memcal I cut off and it said ANHU, is there a big difference between ANHT and ANHU?Thanks,
Doug
Last edited by Dougs 90; Apr 10, 2005 at 08:46 PM. Reason: fix broken link
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Thread Starter
Burning Brakes
Joined: Feb 2003
Posts: 1,218
Likes: 0
From: Rolla Mo
New Data, Input please
I scaled all of the VE tables by.9 and here is the new scan. I think the Code 43 is still stored from Sunday, I guess I need to reset it also.
Thanks,
Doug
Thanks,
Doug
Drifting
Joined: Apr 2003
Posts: 1,379
Likes: 4
From: rome ny
Originally Posted by Dougs 90
I scaled all of the VE tables by.9 and here is the new scan. I think the Code 43 is still stored from Sunday, I guess I need to reset it also.
Thanks,
Doug
Thanks,
Doug
mos90@twcny.rr.com
Thread Starter
Burning Brakes
Joined: Feb 2003
Posts: 1,218
Likes: 0
From: Rolla Mo
Here Is The Latest!!
Alvin,
I think so, take a look at these. I read up on Third Gen and realized what you were telling me in the email now. I have two logs here for all who would like to take a look and give me a hand. There is a stepped RPM log on the last chip I burned today and one just cruizing around. She is running cooler, sounds better, no snapping or popping on decel, still needs some work but I am getting the Lower VE tables in. When using the histogram in Datamaster, which is more important, long term or short term? I think understanding which one I should use for a reference will help in getting the individual cells dialed in. Also when should I use the smoothing tool? I still have some rich spots, and now have a few lean ones also, but my blms are getting closer each time.
I appreciate all of the help here! Thanks!
Doug
I think so, take a look at these. I read up on Third Gen and realized what you were telling me in the email now. I have two logs here for all who would like to take a look and give me a hand. There is a stepped RPM log on the last chip I burned today and one just cruizing around. She is running cooler, sounds better, no snapping or popping on decel, still needs some work but I am getting the Lower VE tables in. When using the histogram in Datamaster, which is more important, long term or short term? I think understanding which one I should use for a reference will help in getting the individual cells dialed in. Also when should I use the smoothing tool? I still have some rich spots, and now have a few lean ones also, but my blms are getting closer each time.
I appreciate all of the help here! Thanks!
Doug
Drifting
Joined: May 2003
Posts: 1,730
Likes: 1
From: Charlotte NC
St. Jude Donor '05
I've never been much of a fan of VE table smoothing tools, the VE table doesn't need to be pretty. it needs to be functional.
Try using VEphd (a little more complicated) or VEmaster. Vemaster is a bit more user friendly but it works by Fuel trim Cells instead of Map. vs. RPM It also ignores idle cells.
It sounds like your on the right track now.
Do you have a decent spark table loaded up?
Try using VEphd (a little more complicated) or VEmaster. Vemaster is a bit more user friendly but it works by Fuel trim Cells instead of Map. vs. RPM It also ignores idle cells.
It sounds like your on the right track now.
Do you have a decent spark table loaded up?
Thread Starter
Burning Brakes
Joined: Feb 2003
Posts: 1,218
Likes: 0
From: Rolla Mo
Originally Posted by Alvin
I've never been much of a fan of VE table smoothing tools, the VE table doesn't need to be pretty. it needs to be functional.
Try using VEphd (a little more complicated) or VEmaster. Vemaster is a bit more user friendly but it works by Fuel trim Cells instead of Map. vs. RPM It also ignores idle cells.
It sounds like your on the right track now.
Do you have a decent spark table loaded up?
Try using VEphd (a little more complicated) or VEmaster. Vemaster is a bit more user friendly but it works by Fuel trim Cells instead of Map. vs. RPM It also ignores idle cells.
It sounds like your on the right track now.
Do you have a decent spark table loaded up?
First off let me thank you for all of your help you have freely given!
I have been using VEmaster, is VEphd better? VEmaster only works up to 3k rpms.
As far as a decent spark table, I actually have no idea what to look for there. Where do I start researching this?
Thanks Again,
Doug
Drifting
Joined: May 2003
Posts: 1,730
Likes: 1
From: Charlotte NC
St. Jude Donor '05
My father tought me how to do spark advance with distributors and i pushed that knowledge into efi.
VEmaster is probally good enough for you, you can set the "tune to " rpm.. I don't see a problme in setting it at 6k as long asyou don't have skewed VE tables at wide open (like 134 instead of the default 128 for PE mode)
VEmaster is probally good enough for you, you can set the "tune to " rpm.. I don't see a problme in setting it at 6k as long asyou don't have skewed VE tables at wide open (like 134 instead of the default 128 for PE mode)