2016 1000F with new ECU issues - Suzuki GSXS1000 Forum
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post #1 of 33 Old 06-24-2018, 09:54 AM Thread Starter
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2016 1000F with new ECU issues

Just picked up a 2016 1000F leftover. The dealer said they would install the current ECU. When I went to pick up the bike the ECU just came in and they did install it. The bike is super smooth BUT no speedo, TC light is on full time, and after 15mins riding the F1 blinks and the check engine light stays on. My dealer has been great and is going to call Suzuki Monday AM to either order a new ECU or resolve the problem...Anyone had any similar problems?? I love the response with the nes ECU and really don't want to go back to the 2016 ECU.
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post #2 of 33 Old 06-25-2018, 01:29 AM
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post #3 of 33 Old 06-25-2018, 03:55 AM
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Originally Posted by chaz1234 View Post
Just picked up a 2016 1000F leftover. The dealer said they would install the current ECU. When I went to pick up the bike the ECU just came in and they did install it. The bike is super smooth BUT no speedo, TC light is on full time, and after 15mins riding the F1 blinks and the check engine light stays on. My dealer has been great and is going to call Suzuki Monday AM to either order a new ECU or resolve the problem...Anyone had any similar problems?? I love the response with the nes ECU and really don't want to go back to the 2016 ECU.
I assume you mean the slightly later ECU - it was only a minor change from the first ECU to fix the surging on cruise. The current ECU (L8) is a completely different ECU and is incompatible with a 2016 bike.

What error code is it giving?
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post #4 of 33 Old 06-25-2018, 04:31 AM
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Originally Posted by PhuketPaul View Post
I assume you mean the slightly later ECU - it was only a minor change from the first ECU to fix the surging on cruise. The current ECU (L8) is a completely different ECU and is incompatible with a 2016 bike.

What error code is it giving?

are they really that different? I was reading and assuming it was just leaner fueling. Interesting to know.
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post #5 of 33 Old 06-25-2018, 04:38 AM
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You have probably done this, but if not check they tightened up the battery terminals.
A charging voltage check would be good idea as your fitted battery is original 2016 stock as well. Does the headlight flare up a lot when you rev the engine ?
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post #6 of 33 Old 06-25-2018, 05:34 AM
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Originally Posted by FreedomPenguin View Post
are they really that different? I was reading and assuming it was just leaner fueling. Interesting to know.
Completely different, different wiring harness.

From what I understand the 2016 GSX-S1000 ECU is physically similar to the Hayabus and the K7-L6 GSXR1000 ECUs.

The 2018 GSX-S1000 ECU is the same as the 2018 GSX-S750
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post #7 of 33 Old 06-25-2018, 06:49 AM Thread Starter
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F1 flashing and check engine light on after about 10 minutes. Also TC light is on. No speedo. Dealer is going to call Suzuki today. I will refer him to your remarks.
Thanks
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post #8 of 33 Old 06-25-2018, 08:15 AM
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Originally Posted by chaz1234 View Post
F1 flashing and check engine light on after about 10 minutes. Also TC light is on. No speedo. Dealer is going to call Suzuki today. I will refer him to your remarks.
Thanks
Sounds to me like a speed sensor error, c16 (front sensor) or c91 (rear sensor). I never trust the dealer 100% so I would check the code myself first.
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post #9 of 33 Old 06-25-2018, 01:39 PM
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how long did it take them to install the ecu....the physical work is awkward enough but then all the sensors and servo motors i'm sure need matched / calibrated / learned to suit the ecu.
FI light is probably the exhaust servo
TC is likely the wheel sensors
I've not seen the software dealers use but I heard its just a box ticking exercise to get the ecu to see them.
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post #10 of 33 Old 06-25-2018, 02:00 PM Thread Starter
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In the manual it states the F1 and check engine are fuel injection issues. F1 blinking and engine light on bike will still run. F1 on and Check engine blinking bike will not start. Took him about 75 minutes. The ECU is under the tank on the 1000F. I sure hope he sorts out the problem because I love the bike. shifts like butter and the engine and throttle response are ultra smooth. Last bike was a FZ-09 and it has it all over that bike. I don't even notice the 40lbs extra weight. 1000F is very well balanced. My only complaint is the gearing...definitely needs an 18T sprocket and maybe a couple of teeth less in the rear.
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