Custom Tuning (OBD1)

Custom Tuning (OBD1)
  • Click to enlarge


Product Information

We offer custom tuning for OBD1 vehicles using any naturally aspirated 60V6 engine.  Our pricing starts at $50 and goes up from there, to roughly $200.  This is based on time and degree of difficulty.  Tuning a car requires focus, so it is important to keep at it once the task has started.  This is first, because too many times we have sent a file to flash, and waited weeks or months (even over a year) to hear back.  To put it plainly, this is a drag and requires more effort than it should to remember what was going on the last time we looked at the tune and setup.  It will cost more for us to tune for this amount of time, even if we are only on our 2nd or 3rd test.  That said, most tuning can be accomplished in a week or 2 depending on schedules and the amount of modifications.  2nd most important, is to be certain your vehicle is in good physical condition, including sensors, fuel filter, fuel pressure, spark plugs, gap, wires, no vacuum leak, no exhaust leaks, etc.  If we tune your car and it needs something fixed, this too will end up costing you more.  Being up front about these charges will hopefully make it easier for us to get to the results you are looking for.

What you need

Custom tuning will require some hardware and software on your part.  We supply the chip, adapter for the memcal, and the base tune with $50 of custom tuning for our base cost.  If you already have a chip/adapter/tune from us, then we start at $50.  From there, you will need some parts from

ALDU1 and CABL1 - ALDL cable for a laptop to scan and log data.  

BURN2 Chip Programmer - Chip programmer for the 27SF512 chips we use.  

You can buy chips and adapters from as well, like we do.  Having a spare chip is a good idea.  A ZIF socket can be installed on the adapter to make it easier to remove and install the chip, though it will cause a clearance issue with the computer case.  We use an IDE header pin to install the memcal adapter in the BURN2 to avoid removing the chip.  It is up to you on how you wish to deal with this.  "28 Pin Header" is the closest to what we have here using a quick search.

Tuner Pro - RT version gives you the ability to read and write the chip in software.  You can use this for free and wait 10 seconds for the software to load, or pay $39 and support the developer (recommended).

Definition Files - These are all the setups that the software supports.  For us, we generally use $A1 and $DF.  $A1 is 3.1 V6, 1991-1994.  When possible, we use this code for the older vehicles to give us the best datalogging option.  $DF is 3.4 DOHC and 93 3.1 W body (4T60-E) based.   You will want both the .XDF and .ADX files.  .XDF is the chip layout file, and the .ADX is for the datalogging.  

Using TunerPro

The first step will be to read the chip. With the notch on the chip matching the diagram on the BURN2, install the chip and connect the USB to your computer.  In Tuner Pro, Tools > Initialize Emulation Hardware.  Now it will see the BURN2.  Tool > Hardware Utilities > Moates Prom I/O.  This will pop up a window.  Select the 27SF512 chip (will be printed on the chip itself) or if you are reading a stock chip, 27C256.   With the 27SF512, make sure Chip Addressing is starting at 008000 and ending 00FFFF.  Buffer will be starting 000000 and ending 007FFF.  Read Chip.  Verify Chip with Buffer.  Save Buffer to File.  We generally call this file "Start".  Now you can close this window.  You can now load the .bin file, and go to the toolbar under XFD and load the .xdf file to see all of the data in the chip.  You don't need to do any of this with our service, but you can see what we are changing and learn as we go so you can do this yourself later on if you want.  All we ask is that you don't give our files away.  Tuning is what makes the other parts we sell work as best as they can, and selling our services is what helps us stick around, to share information and offer better support to the 60V6 community. 

Burning the chip is the same process, using the Program Chip option after loading the modified file to buffer.  Be sure to do a read and verify after you program the chip.


Toolbar, Acquisition > Load Definition.  This is where the .ADS or .ADX file is loaded.  Next, Tools > Preferences.  Data Acq./Emulation tab.  Interface Type = Use Plug-in.  Tunerpro Data Acquisition I/O Interface.  Configure Plug-in Component.  Standard Serial Port Type, and the Port Number that your ALDL cable is connected to.  This should have your software ready to scan and record.  All of the options are under the Acquisition toolbar, or below that, the right side icons and "play/record" area are for the datalogging as well.  CTRL - F4 will start/stop the logging, though this is not going to record.  The red button next to the play button will appear, which is what you click to record (or CTRL - Alt- Space).  Make sure you click the button again or use the keyboard shortcut (CTRL - Space) to stop recording before you stop the datalogging.  It will then ask you what you wish to save the file as.  This file is an .xdl format, and is what you will send us.  


Product Code CTOBD1
Manufacturer WOT-Tech
Condition New