Level 6 Pin 21?????
05-10-2008, 06:13 PM
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strange as my level 6 has a wire attached internally to it which then is soldered onto a pin on the chip which is not plugged in to then have a resistor going onto the next pin!!!???
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05-10-2008, 06:26 PM
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05-10-2008, 06:40 PM
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Someone has modified that to enable a map switch function. 
They have fitted an eprom that is twice the size, and loaded 2 chip programs in it.
The extra pin switches between 2 seperate programs in effect.
Multiple ignition maps most likely!
Ground the pin to switch chips.
They have fitted an eprom that is twice the size, and loaded 2 chip programs in it.
The extra pin switches between 2 seperate programs in effect.
Multiple ignition maps most likely!
Ground the pin to switch chips.
Last edited by ECU Monitor Enthusiast; 05-10-2008 at 06:43 PM.
05-10-2008, 07:16 PM
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Gareth,
Actually that eprom is 4 times the size of the standard L1 chip.
The ecu can only read the size of its original chip unless its been modified with a plug in board etc....
L1 used a 2764 (8 kb)
L6 used a 27128 (16 kb)
L8 used a 27128 (16 kb)
P8 used a 27256 (32 kb)
You can use bigger as long as the extra address pins are fixed in a known state.
Effectively, half that chip is empty !!!
Actually that eprom is 4 times the size of the standard L1 chip.
The ecu can only read the size of its original chip unless its been modified with a plug in board etc....
L1 used a 2764 (8 kb)
L6 used a 27128 (16 kb)
L8 used a 27128 (16 kb)
P8 used a 27256 (32 kb)
You can use bigger as long as the extra address pins are fixed in a known state.
Effectively, half that chip is empty !!!
Last edited by ECU Monitor Enthusiast; 05-10-2008 at 07:20 PM.
05-10-2008, 07:49 PM
#18
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i remember stu talking about this to my years ago! saying 27c128 are getting hard to get hold of, so maybe using 27c256 in L8's
i didnt know L1's was 8kb's PMSL
i didnt know L1's was 8kb's PMSL
05-10-2008, 07:55 PM
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Yes, its much cheaper to use a bigger/faster memory chip now !
How times have changed...lol
When I first started in electronics my first eprom I ever used was a 2708.
It had 512 bytes (half a kilobyte) and needed 3 voltages +5v, +12v and -5v and consumed around 20 watts of energy LOL
How times have changed...lol
When I first started in electronics my first eprom I ever used was a 2708.
It had 512 bytes (half a kilobyte) and needed 3 voltages +5v, +12v and -5v and consumed around 20 watts of energy LOL
05-10-2008, 08:02 PM
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Trotter,
Yes I am 100% sure this is what that does. I do have ECU experience
As for what is in the chip(s), ONLY the original tuner will know !!!!!!
Could be different maps for anything, ignition, fuel boost and/or any of those !!
Yes I am 100% sure this is what that does. I do have ECU experience
As for what is in the chip(s), ONLY the original tuner will know !!!!!!
Could be different maps for anything, ignition, fuel boost and/or any of those !!
Last edited by ECU Monitor Enthusiast; 05-10-2008 at 08:06 PM.
05-10-2008, 08:07 PM
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so just getting a level 6 ecu will plug straight in with no other mods?Not interested in L8 and all those stupid gimmicks just want a chip to run greys and a T34
05-10-2008, 08:15 PM
#27
Gareth,
Actually that eprom is 4 times the size of the standard L1 chip.
The ecu can only read the size of its original chip unless its been modified with a plug in board etc....
L1 used a 2764 (8 kb)
L6 used a 2764 (8 kb)
L8 used a 27128 (16 kb)
P8 used a 27256 (32 kb)
You can use bigger as long as the extra address pins are fixed in a known state.
Effectively, half that chip is empty !!!
Actually that eprom is 4 times the size of the standard L1 chip.
The ecu can only read the size of its original chip unless its been modified with a plug in board etc....
L1 used a 2764 (8 kb)
L6 used a 2764 (8 kb)
L8 used a 27128 (16 kb)
P8 used a 27256 (32 kb)
You can use bigger as long as the extra address pins are fixed in a known state.
Effectively, half that chip is empty !!!
thanks Stu , It was a cut and paste error. lol
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