Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

Where to start??

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Old Jul 10, 2008 | 01:42 PM
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Where to start??

I have a 95 z28. obd1. Have had Brian at Pcm4less do my tunig in the past. I have a latptop and want to start doing some of it on my own.
Im looking to throw on a n2o kit, i also wana do datalogging with a scanmaster. Need to upgrade injectors, etc. Lots of reasons to have tuning capabilities.

What would you guys rec?
I know i need a cable, software, etc.
Old Jul 10, 2008 | 04:04 PM
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Your sig. says '95 Z28 so you're ODB1. I chose - TunerCat. Base tuner SW is $70.00 and $EE Definition file was $20.00. - Purchased an 'ODB Diagnostics' GM OBD1-USB Cable (no serial port on my PC) comes with drivers on CD for $60.00. Total $150.00 to read and edit PCM. I then use Freescan (really crude but free) and TTS DataScan (Download an 1st 20 logs are free) for logging . There are other more, and less, costly combinations out there, takes quite a bit of reading and research and you have to filter out all the OBD2 only products. A Good thing w/Tunercat is the license is not not limited to one VIN, if you have other cars you can use it anywhere, just need to purchase correct the definition files at $20.00 each.
Old Jul 10, 2008 | 05:10 PM
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I got a moates usb cable, and tunercats. I use freescan alot of the time to scan with, but datamaster does have its advantages. Other than that search here and read everything you can about how to tune.
Old Jul 11, 2008 | 05:53 PM
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could i use a scanmaster with all of this? will certain softwares not work with one? I know there is bucket of BS for me to learn, not looking forward to it.
Old Jul 13, 2008 | 10:30 AM
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ScanMaster for LT1 is a real time dash mounted type display with capabilities to view engine sensor data on the spot prior to turning off the ignition. Tunercats a PC program reads and edits the actual parameters (tables, constants,switches, speedo settings, etc) within the PCM, it does not display sensor data. TTS Datascan and Freescan, PC programs display sensor data and can provide a log file for detailed analysis of engine performance sitting at a terminal with a beverage. They are all different tools that can be used to put together a comprehensive tuning strategy, it depends on what you want to view and accomplish. Since ScanMaster uses the ALDL connection it can not be used at the same time as the other tools, but I don't foresee that as a problem as you should never run any of these tools concurrently to avoid PCM corruption.
Old Jul 13, 2008 | 09:43 PM
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thanks.
Old Jul 14, 2008 | 01:28 PM
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so a scanmaster isnt going to log my data, its only a display of whats going on with the engine?
Old Jul 14, 2008 | 02:21 PM
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Scanmaster will log some info, but not sure how useful that data will be. Better to log it with a laptop.

http://www.injuneer.com/ScanMast.html

http://www.fullthrottletech.com/showthread.php?t=1489
Old Jul 17, 2008 | 09:45 AM
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So are scanmasters worthless are far as a logging tool? Should i not bother with one if i am going to buy software and a cable?
Old Jul 17, 2008 | 10:34 AM
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Originally Posted by slomarao
So are scanmasters worthless are far as a logging tool? Should i not bother with one if i am going to buy software and a cable?
Thats about right.

What it is good for is if you dont have your laptop in the car every day you can still see what the computer is doing. I wish there was something like the aeroforce interceptor for ob1 cars, its kind of a newer better version of a scanmaster.
Old Jul 17, 2008 | 10:42 AM
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Logging, no

Readings of all sensors in compact design, yes
Old Jul 17, 2008 | 11:01 AM
  #12  
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thanks, guys.
I didnt know what exact purposes it serves. I do want to know whats going on at all time,s as my motor is going from mild to wild. I have n2o plans, a cam, and than want to be able to tune the car myself at the track.

I want to be able to make a run, check things out and do a little t&t to find what optimal for my setup. Than pull timing, add fuel, or whatever to correct of better my timeslips.

So its almost like a computer gauge huh?
Old Jul 17, 2008 | 11:05 AM
  #13  
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Originally Posted by slomarao
thanks, guys.
So its almost like a computer gauge huh?
Something like that. It's a live reading of the pcm. One of the more interesting things it does is tell you if you have KR and what your short and long term fuel adjustments are. You'll need to have a laptop and tuning programs to do what you're doing anyway, you might as well just use that.

The SM is better for everyday driving and knowing what's going on with the car than it is for tuning purposes.
Old Jul 18, 2008 | 02:05 PM
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ya thats why i want it.
Thanks for the clearing things up
Old Jul 26, 2009 | 12:30 PM
  #15  
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Ok I got a AKLAMP cable what software should i go with?? I just got 30lb injectors and want to install and tune the car for them. I just put on a LS lid and FTRA, mallory 685 so i need them for the extra power. shooting for 345rw boltons.
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