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Post Info TOPIC: GSXR 600 K8 33hp


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GSXR 600 K8 33hp


I am not familiar with this exact model but usually this would be the Map Select (MS) pin of the ECU. No wire connected to this pin (MS1) selects one set of Fuel, Ignition, Secondary Throttle, etc maps. Grounding the pin (MS0) selects a different set of maps.

The software actually has 3 MS selection modes:

MS0 always
MS1 always
MS = pin input

If one of the first two options are programmed in then changing the wire will have no effect. The amount of effort to change it compared to the benefits however makes it worth a try.

The pin is 66

(check out this pinout for the 1000 which is the same for newer 600/750)

The wire is Black/White stripe. Problem is that is a ground wire and there are many ground wires connected to the ECU. As shown in the link you want the one on the left hand connector, bottom row, between Orange/Blue and Blue

Better to pull it out than to cut it. If you do cut it make sure you leave enough wire to connect it back up if you need to. But don't cut it so far back that you are actually cutting the ground to several ECU pins. Like I said better to pull it out.

(This is for an older two row connector but the newer three rows are essentially the same)

 

Wiring12.jpg

 

Let us know the results if you decide to try it. (And your ECU part number)

 



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Newbie

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Hey. Have an original European 33 hp GSXR. Wonder what wire in the ECU to be cut for this to provide 125hp?



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Fredrik


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Thanks for the informations. But I have already checked this PIN 66! On my bike there is no PIN 66/ no wire.
Here is the ECU:

32920 - 37H30
112100 - 6040
12V NEP0M7
DENSO Made in Japan

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Fredrik


Senior Member

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Try grounding it then. Should switch map if its not connected now. Connected on the old ones, maybe switched to minimize one cable in harness? :)
It was Molex connector on the newer ecu´s, right? So get a hold of a matching pin for the connector and wire to GND with a switch and se if anything happens when switching.

RidgeRacer, is it much to change in the code to make it switchable if one set is "hardcoded" in?
Justin, how does new EE handle this?

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Hello Fredrik,

the problem is, the picture above shows the connector from the up to K7 ECU.
Your corresponding connector is a gray 36-pin connector with 3 rows with 12 pins each.
Your ECU has 2 connectors, one black and the other gray. The pins on both connectors are numbered from 1 to 36.
But Pin 66 is pin 30 (36 + 30 = 66) on the gray connector. The wire color is black with a white stripe.
You only have to cut this wire and your ECU uses the unrestricted mapping.
Looking into the bin-file says that the map switch function is active in this ECU.

Greets
Blackgixxer



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Newbie

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Thanks you! PIN 30 was the right wire :D Now its fun!

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Fredrik
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