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post #1 of 22 (permalink) Old 10-12-2019, 01:25 PM Thread Starter
Grand Prix 125
Main Motorcycle: 2002 SV650
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Can anyone please help me with an answer. Will the street triple start without the the crank shaft sensor or without the speed sensor. I have replaced the wiring harness on mine but it seems as though the replacement crank sensor I got has two wires while the original has 3 wires. So I'm trying to find out what might be the issue before I try and order another sensor. Also is the speed sensor the same as the crank sensor I got two different pictures for each and they look the same sort off.
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post #2 of 22 (permalink) Old 10-12-2019, 01:35 PM
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crank sensor, the bike will definitely need this to function. I believe it tells the ignition system the crankshaft position via a magnetic signal..
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post #3 of 22 (permalink) Old 10-12-2019, 07:30 PM Thread Starter
Grand Prix 125
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Nice thanks. What about the pictures are they both crank sensors. The red one was labeled as a speed sensor on ebay but Im not sure thats the right name since it looks so much like the other crank sensor
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post #4 of 22 (permalink) Old 10-12-2019, 07:55 PM
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Starting issues

What year bike is that speed sensor from? (red picture)
Looks like the second generation 8-12
If Iím not mistaken the 13+ speed sensors are on the wheels versus the transmission on the previous generation.


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post #5 of 22 (permalink) Old 10-13-2019, 02:43 PM Thread Starter
Grand Prix 125
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So I went ahead and spliced the two pin to the three pin. The bike lights up with gauges and all however there is no power when i press the ignition. I tried to use TuneECU to read any faults but it says cannot detect ECU check cable and so far im at a loss. I wonder what I am missing to get this to start.
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post #6 of 22 (permalink) Old 10-13-2019, 02:57 PM Thread Starter
Grand Prix 125
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Quote:
Originally Posted by Gzblack2 View Post
What year bike is that speed sensor from? (red picture)
Looks like the second generation 8-12
If Iím not mistaken the 13+ speed sensors are on the wheels versus the transmission on the previous generation.


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The posting said "Eb324 2012 Triumph 675 Street Triple R"

Ato
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post #7 of 22 (permalink) Old 10-14-2019, 01:29 PM
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When you say no power do you mean it doesn't crank?

Without a correct CPS signal the bike will crank but not fire.
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post #8 of 22 (permalink) Old 10-14-2019, 03:00 PM Thread Starter
Grand Prix 125
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well all it does when i hit the ignition is a click sound by the relays. I connected the tune ecu using different laptops they all say cannot connect to the ecu turn ignition on and off and check cable. The guages light up. It shows its in neutral (green light), the fuel light is on (the connectors are connected but the tubes arent), the check engine light is on but its just constantly blinking. The kickstand is down and I depress the clutch lever before I hit the ignition.

Last edited by akahwoi; 10-14-2019 at 03:00 PM. Reason: typed gear instead of neutral
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post #9 of 22 (permalink) Old 10-16-2019, 03:00 PM Thread Starter
Grand Prix 125
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Will a weak battery also cause this issue. I haven't tested the battery yet but will do but want to know if a weak battery will cause the bike not to even crank or to read the ecu?
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post #10 of 22 (permalink) Old 10-17-2019, 09:21 AM
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A bad battery can be the source of an entire list of woes. It's also the easiest and should be the first step in troubleshooting. If you don't know if your battery is 100%, the first thing you should do is change it for one that is.

Just because I'm paranoid, it doesn't mean the whole world isn't out to get me.
Words mean things.

My life is not without meaning. I can be held up as a bad example.
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