Reference address for stock 968 map
07-08-2009, 04:01 PM
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Reference address for stock 968 map
Does anyone know the reference address for the 968 maps. I've decided to try and understand the mapping better and have pulled the map off the EPROM. I've worked out a few tables but not got the complete set yet. In particular im struggling with the 2d maps.
07-13-2009, 07:47 PM
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I don't know any of the addresses. However, lets keep this going and hopefully we can learn something.
If you email me I'll send you the .bin file of a custom 968 chip. I run it in my car and the I can say that the engine seems to have more mid-range torque and certainly has the higher rev limiter. The chip is claimed to have re-mapped fuel correction and timing advance maps, higher rev limiter and altered variocam points.
There is some information if you google search FR Wilks. He posted information on 944/944S2.
I've used a .bin comparison tool to understand the differences between the stock chip and my custom chip. There is not a ton of difference - still trying to figure it out.
Here is what is different (hex addresses): 0515-052B, 8D86-8D96, 8DAA-8DBA, 8DCF-8DDE, 8DF2-8F2A.
How about posting what you've discovered so far?
hightecheuro@gmail.com
If you email me I'll send you the .bin file of a custom 968 chip. I run it in my car and the I can say that the engine seems to have more mid-range torque and certainly has the higher rev limiter. The chip is claimed to have re-mapped fuel correction and timing advance maps, higher rev limiter and altered variocam points.
There is some information if you google search FR Wilks. He posted information on 944/944S2.
I've used a .bin comparison tool to understand the differences between the stock chip and my custom chip. There is not a ton of difference - still trying to figure it out.
Here is what is different (hex addresses): 0515-052B, 8D86-8D96, 8DAA-8DBA, 8DCF-8DDE, 8DF2-8F2A.
How about posting what you've discovered so far?
hightecheuro@gmail.com
Last edited by 300guy; 07-15-2009 at 10:24 PM.
07-13-2009, 07:49 PM
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I'm running an EPROM emulator and as soon as I have a decent confidence level of where things are I'm planning to tweak things on the fly and monitor with my data-logger and wide-band O2 sensor.
