| Author |
Message |
    
Fahren
| | Posted on Sunday, May 31, 2009 - 12:48 am: | 
|
I had my bike running while gearing up for a ride. The kickstand slipped off the flagstone paver it was leaning on and dug into the adjacent dirt, and my bike keeled over to the left and of course the engine died. Now, I righted the bike, went to start up, and there is no whine from the fuel pump priming when I turn the kill switch on. The needles sweep when I turn key to "on," but when I turn kill switch to on, I can hear the click from the relay/diode in the fuse box, but no fuel pump whine. The engine will crank fine but will not fire up, I guess because the fuel pump needs to do that whiney thing at startup to deliver fuel. I never had any problem like this; I've read some related threads, but I can't find one that sounds like the same issue. Any help? |
Bombardier
| | Posted on Sunday, May 31, 2009 - 07:13 am: |
|
Bank angle sensor may be stopping you from starting up because it has come down hard.
It is behind the front fairing on the R model but not sure on the S.
Give the handlebars a shake from side to side whilst the ignition is on.
Failing that you may have to try bridging the BAS. |
Fahren
| | Posted on Sunday, May 31, 2009 - 10:17 am: |
|
BAS in under the seat on the S, between fuse box and seat bracket. I'll look at it - but the manual says the BAS shuts off fuel pump AND ignition. Bike turns over when I hit ignition switch, but w/o fuel pump action it won't start.
I had my ECMSpy cable hooked up right near the BAS when the bike keeled over - can't imagine that the cable could damage anything by being there and pulling on something, but gotta check it anyway.
(Message edited by fahren on May 31, 2009) |
Fahren
| | Posted on Sunday, May 31, 2009 - 10:05 pm: |
|
More bad stuff, and I am clueless:
Today, I hook ECMSpy back up to read for trouble codes... went to trouble codes, clicked "read," and got a window saying "Could not get firmware."
So I tried getting codes manually, shorting pins 1 and 2. Done this before no prob. Not this time. Nothing. Radio silence from the Check Engine Light - not a single flash.
Downward spiral: every time I go to work on a problem, some other problem crops up that I need to look for before I get to the first problem. I was going to datalog with ECMSpy, so bike was idling while I geared up for my ride to diagnose misfiring, stuttering problem. Now I can't even start the bike! |
Id073897
| | Posted on Monday, June 01, 2009 - 04:59 am: |
|
Check fuses and relays. ECM is not powered up. |
Fahren
| | Posted on Monday, June 01, 2009 - 08:30 am: |
|
The ECM fuse (and all fuses) are fine.
How does one check the relays?
By the way, I just noticed that the position of the 3 gray relays in the fuse box does not correspond with the diagram on the fuse box cover: there are 3 relays, and I assume they should be aligned the way the diagram shows, with FRONT being the front of the bike. The diagram shows 2 in FRONT, one toward the rear of the bike. Mine is reversed: 1 in front, 2 in rear. But the bike had no problems until recently. Anyone seen this with his/her bike?
I don't want to keep spiraling into different issues, but these little things keep coming up, and I can't even start the bike now, never mind ride it, datalog, and diagnose the initial rough running problem I had that started this whole thing! |
Fahren
| | Posted on Monday, June 01, 2009 - 09:16 am: |
|
Found this in service manual, while going thru diagnostic flowchart for fuel pump:
NO ECM POWER 4.12
GENERAL
A relay controlled by the engine stop switch supplies power to
the ECM. The relay requires a ground to operate. If the
ground is not established, the ECM will not receive power. If
the ECM does not appear to be receiving power, check the
ground sources. A blown ignition fuse or ECM fuse can also
disable the ECM.
Now, how do I "check the ground sources?" |
Id073897
| | Posted on Monday, June 01, 2009 - 09:24 am: |
|
Use an ohmmeter to check for continuity to ground.
Check B1 for switched power, B2 for continuity to ground, G5 for unswitched power. The ECM will not boot up if one of these is unsufficient. |
Fahren
| | Posted on Monday, June 01, 2009 - 10:21 am: |
|
B1: switched ignition.
B2: system ground A (module)
G5: memory.
I don't know what the resistence should be on each, but I'll look at each for as far as I can trace them.
While I am in there with an ohmmeter, maybe I should check out G9 (engine temp.), since my last trouble code was 14: "ETS short to ground".
I am very far from being "Joe Electrician," so wish me luck! |
5liter
| | Posted on Monday, June 01, 2009 - 12:21 pm: |
|
Switch the relays and see what happens. |
Fahren
| | Posted on Monday, June 01, 2009 - 09:36 pm: |
|
I was going to try that, but the photo in the service manual clearly shows them set up the way it is on my bike. Bad labeling, I guess. |
Fahren
| | Posted on Tuesday, June 02, 2009 - 05:14 pm: |
|
Got the ECM back. There is a white wire from the harness that plugs into a connector on the ECM between gray and black connectors. Labeled "Connector 164" in service manual. Don't know what it does, but it was loose.
Back to earlier problem: ECMSpy tells me same historic error codes as before: o2 sensor always lean, and ETS short to ground. Those were historic, so I have cleared them - no current codes present.... until I go out tomorrow and log my ride....
will post. |
5liter
| | Posted on Tuesday, June 02, 2009 - 08:57 pm: |
|
I think that connector (164) is for the interactive muffler servo. |
|
Troubleshooting (Poor Starting/Running/Handling/Ride Issues) »
Archive through June 03, 2009 »
No fuel pump whine at startup