Looking to borrow ECU of a 2017 or 2018 Kawasaki Versys 1000 | Page 2 | GTAMotorcycle.com

Looking to borrow ECU of a 2017 or 2018 Kawasaki Versys 1000

Forum Sponsor
Something for you to ponder:
If the BR/W is 12 volts+ (and it certainly looks that way from the wiring diagram)
and the purge valve needs 12 volts D.C. to open, (as we know from the test procedure)
and pin # 13 is connected to a R/Y wire that leads directly to only the purge valve,
and no chassis ground is indicated on the diagram for the purge valve itself (only the 2 wires)

How could the R/Y wire connected to pin #13 on the ECU be anything other then a circuit ground for the purge valve?
 
  • Like
Reactions: J_F
In case it can help, here's a partial color wiring diagram. Hope it is large enough for you guys to read it...

48936459696_24fdb42dec_k.jpg
 
Much easier on the eyes :geek:


... can you come up with a 12 volt light bulb that has ~32 ohms resistance?
 
One more thought:
The purge valve looks indeed to be a relay with a 30~34 ohms rating. So, to simulate this missing valve, what do you think I wire in a standard relay, assuming I can find one with the same 30~34 ohms value?

At the worst, I could simply buy the OEM purge valve and wire it in as on CA model. However, this valve costs $89 US...
 
Here's a simpler solution to shipping ECU's, checking wiring etc etc...
Why not just go and join a forum for that motorcycle and ask if anyone can send you the stock non-California ECU map/programming?
Upload that to the ECU and see if the CEL light goes off.
 
I agree with trials

appears that wire to the ECU will be looking for a ground
12V supply to the other side of the purge valve comes from a relay

edit: or to be more precise
the ECM is probably looking for the appropriate voltage drop across the purge valve
this would be how it knows the condition of the valve/circuit and whether to code it or not
 
Last edited:
BigEvilDoer said:
Here's a simpler solution to shipping ECU's, checking wiring etc etc...
Why not just go and join a forum for that motorcycle and ask if anyone can send you the stock non-California ECU map/programming?
Upload that to the ECU and see if the CEL light goes off.
Click to expand...
Already made this on TWO Versys 1000 forums. But this bike is not a huge seller and there are not much members on both forums.
However, instead of asking to borrow an ECU, maybe asking for the map/programming would work, assuming someone there do have it. I'll edit my request on both forums.
 
Would a dealer , or tuner with connections , not be able to download , then reload the factory map for you ?
 
HERBXX said:
Would a dealer , or tuner with connections , not be able to download , then reload the factory map for you ?
Click to expand...
No. The map that has been downloaded in my ECU did crush the original one. I need to borrow one in order to take the OEM map out of it.
 
What I mean is that the dealer should have access to a place to download the factory map from, like a file server , not an ecu . Have you asked a Kawi dealer ?, or one of the teams that races them ? I know that KTM dealers used to be able download various sets of maps for my SMC.
 
HERBXX said:
What I mean is that the dealer should have access to a place to download the factory map from, like a file server , not an ecu . Have you asked a Kawi dealer ?, or one of the teams that races them ? I know that KTM dealers used to be able download various sets of maps for my SMC.
Click to expand...
Interesting. I know Evinrude has such a repository but it is locked up tight. You need an ECU hooked up to the mothership and then it will only allow the factory default for that SN/ECU to be downloaded. I am surprised that some brands have it as open access (at least at the dealer level).
 
GreyGhost said:
Interesting. I know Evinrude has such a repository but it is locked up tight. You need an ECU hooked up to the mothership and then it will only allow the factory default for that SN/ECU to be downloaded. I am surprised that some brands have it as open access (at least at the dealer level).
Click to expand...
back in 2011 , the SMC really didn't run great unless you had the dealer install the offroad only map, only the dealer could download and install them .
 
HERBXX said:
What I mean is that the dealer should have access to a place to download the factory map from, like a file server , not an ecu. Have you asked a Kawi dealer ?, or one of the teams that races them ? I know that KTM dealers used to be able download various sets of maps for my SMC.
Click to expand...
OK, I see. No, I did not ask a Kawasaki dealer. But you're right, I should have thought at this possibility... Will check as soon as I can.
 
Out smart the ECU, is too easy :geek:
Light bulb or bulbs to complete the circuit is the way to go if it clears the warning code.
... you can wire your bulbs in series if you need to up the resistance value.

Might as well use the light produced for something useful, I have a feeling it is going to be on all the time your motor is running.

btw: have you looked for a plug on your bike, that would go to the valve if you had one? I should think it will be on there, unlikely they would have a special wire harness just for cali sales.
 
There's 2 different part numbers for the main wiring harness. I don't know what the difference is ... but I can surmise that one part number has the wiring for the purge valve, and the other part number does not!

The purge valve is probably on whenever the engine is above some RPM and throttle position threshold, i.e. under enough load that the resulting unknown mixture of unmetered air and fuel (due to the fuel vapors that might be in the charcoal canister) don't cause problems with how the engine is running.

The old school non electronic automotive evap systems often used a vacuum switching valve that activated when the throttle was open somewhat past idle speed (the old "ported vacuum"). Closed at idle to avoid the purge vapors causing problems. Closed when engine is off (no vacuum).
 
Brian P said:
There's 2 different part numbers for the main wiring harness. I don't know what the difference is ... but I can surmise that one part number has the wiring for the purge valve, and the other part number does not!

The purge valve is probably on whenever the engine is above some RPM and throttle position threshold, i.e. under enough load that the resulting unknown mixture of unmetered air and fuel (due to the fuel vapors that might be in the charcoal canister) don't cause problems with how the engine is running.

The old school non electronic automotive evap systems often used a vacuum switching valve that activated when the throttle was open somewhat past idle speed (the old "ported vacuum"). Closed at idle to avoid the purge vapors causing problems. Closed when engine is off (no vacuum).
Click to expand...
There are 2 different wiring diagrams, ours is the California version.
As for, when is it going to operate, stick a light on there where the solenoid is expected to be and you are going to find out.


I just walked out to the garage a moment ago and grabbed the first bike bulb I could find. It measured 8 ohms.
4 of those in series on that circuit and you are good to go.
:cautious: or you have different problem.

? was awesome riding today seen lots of bikes and trikes out.
 
If ours has the California-version wiring harness, there is a pretty good chance that the wiring for the purge valve is there, but not connected!
 
Or the dealerships just pocket the extra parts that come in every bike crate.
It happens.
 
HERBXX said:
What I mean is that the dealer should have access to a place to download the factory map from, like a file server , not an ecu. Have you asked a Kawi dealer ?, or one of the teams that races them? I know that KTM dealers used to be able download various sets of maps for my SMC.
Click to expand...
Just back from the closest Kawasaki dealer and there's nothing he can do. He said only motocrossers and some hypersport models have changeable ECU "sticks" with some pre-programmed maps.
Forum Sponsor
 
You must log in or register to reply here.

Back
Top Bottom