| Author |
Message |
    
Deanh8
| | Posted on Saturday, April 18, 2009 - 03:10 pm: | 
|
It cranks over fine, all my fuses are good, I put a new ECU, new ignition module, new plugs, new coil new wires and still nothing.
Ive looked over the wiring and dont really see anything out of the ordinary unless something is broken inside of a loom.
Anyone have any ideas? Fuel pump works good, its getting fuel, no check engine lights, no spark, but it cranks. Also I noticed that if I have it in gear and pull in the clutch it doesnt roll. Its done this before sometimes but maybe its related? Im out of ideas and dont have the proper tools to diagnose it with a breakerbox and stuff |
Only1beard
| | Posted on Saturday, April 18, 2009 - 03:57 pm: |
|
OK Focus on ignition. Got to have fire. Make sure your getting 12vdc to coil. If so the computer wont tell it to fire until it gets a signal from the crank position sensor. It may have everything to do with timing. Hit me back. |
Deanh8
| | Posted on Saturday, April 18, 2009 - 04:05 pm: |
|
how do I test the coil, check the center post in the 3 prong plug?
I just had the bike dyno tuned about a month ago, they installed a micron pipe and tuned it. Had been running decent except on cold starts it would die when I would come to a stop. |
Sparky
| | Posted on Saturday, April 18, 2009 - 04:56 pm: |
|
There are three relays in the Relay Center. Try swapping the ignition relay with the start relay and see if that changes things. |
Deanh8
| | Posted on Saturday, April 18, 2009 - 08:11 pm: |
|
I bought all new relays and still nothing |
Deanh8
| | Posted on Saturday, April 18, 2009 - 08:28 pm: |
|
"OK Focus on ignition. Got to have fire. Make sure your getting 12vdc to coil. If so the computer wont tell it to fire until it gets a signal from the crank position sensor. It may have everything to do with timing. Hit me back."
Its getting 12vdc to the coil, no spark and my plugs aren't gettin wet when Im trying to crank it. But it smells like fuel? |
Sparky
| | Posted on Sunday, April 19, 2009 - 01:53 am: |
|
Well, if you're getting 12 VDC to the coil, the ignition needs a signal ground from the crank position sensor to the ECM through one of several sources: either the neutral switch, the clutch switch or the sidestand switch.
Normally it should fire by pulling in the clutch lever or putting it in neutral with the neutral light on. So if it doesn't, then it wouldn't help by suggesting to disconnect the sidestand switch and jumpering the two wires in the wire harness together thus bypassing the sidestand switch. |
Sparky
| | Posted on Sunday, April 19, 2009 - 01:58 am: |
|
One more thing, did you get a check engine light?
If not, then there's most likely a wire harness problem such as an intermittent break in a crucial wire that is preventing ignition.
If so, then you need to determine what the error code is by shorting pins 1 and 2 in the data connector and reading back the signal. |
Deanh8
| | Posted on Sunday, April 19, 2009 - 03:25 am: |
|
No check engine light but I looked at as much wiring as I could would taking out the engine and I did not notice anything. I didnt think I had a side stand switch, I was able to start it with it on the stand. I dont have a check engine light and my ecm spy says no problems. |
Reepicheep
| | Posted on Sunday, April 19, 2009 - 08:58 am: |
|
Did you try a new plug, and look to see if that gets spark? |
Deanh8
| | Posted on Sunday, April 19, 2009 - 01:41 pm: |
|
Yes, Still no spark everything is new. I will try to bypass the kickstand switch today |
Sparky
| | Posted on Sunday, April 19, 2009 - 02:04 pm: |
|
A stock '03 XB9R has a sidestand switch.
The fact that it starts ON the sidestand doesn't verify the switch is good because when the sidestand is down the switch is open circuit. It is probably starting because you either have the clutch lever pulled in or the bike is in neutral. This would exonerate either the clutch switch or neutral switch, whichever one was active at the time.
When the stand is up, the switch closes to allow a ground for the ignition. The sidestand switch is in parallel with the neutral and clutch switches via diodes.
If diode #2 fails open, the neutral light would illuminate but the ignition would fail if no other ignition interlock switch is providing a ground.
If diode #1 fails open, the clutch switch would not allow ignition operation if no other ignition interlock switch is providing a ground.
You can test the sidestand switch as follows, but be careful with this as it is kind of tricky. When you are rolling along in gear and, without touching the clutch lever, start to put the sidestand down, the ignition should cut out. Then if you put the sidestand back up, the ignition should operate again.
So if the above test works, you may have an intermittent sidestand switch which is probably why it died on you on the highway. Your choice then is to replace or bypass the switch. |
Deanh8
| | Posted on Sunday, April 19, 2009 - 02:14 pm: |
|
I have taken off with my sidestand down before so I can verify it never worked, maybe thats my problem |
Deanh8
| | Posted on Wednesday, April 22, 2009 - 06:10 pm: |
|
I think this has to do with my pinion gear, its not spinning under the CPS |
|
Troubleshooting (Poor Starting/Running/Handling/Ride Issues) »
Archive through June 03, 2009 »
XB9R Died on highway, Wont start