Reply With QuoteCheck ground cables first
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I have a trouble code reader for my xb9r. installed, the unit flashes 11 times. in the manual it recommends testing or replacing my throttle position sensor. Which makes sense because I'm having a buck and surging problem when modulating throttle (mostly around 4K RPM) As if it's missing firing and momentarily losing engine power. Not electrical power loss, just handling characteristics.
The guy who sold me the reader ( who really seem to know his stuff...really...) says that I have no fault showing because it's not one of the "readers" codes but the factory ones listed in the manual. I diagnosed the reader by disconnecting a couple of sensors to see. It works as ordered.
Basically, i was under the impression that in order for a factory trouble code to flash, the engine light would be on all the time while running the bike. it only flashes for a second during start-up and does the oil light which i understand is normal.
Any thoughts?
Ive changes the plugs which were disgusting, cleaned and checked the plug cables. now throttle body et al on the way and a ECM spy cable.
humbly welcoming suggestions as I'm quickly losing my riding season...
Thanks,
Ben
Check ground cables first
Check for what?
The Check Engine lamp is only turned on for current faults, but not historic faults. If I'm interpreting your description correctly, you have a historic code 11 but no current code.Basically, i was under the impression that in order for a factory trouble code to flash, the engine light would be on all the time while running the bike. it only flashes for a second during start-up and does the oil light which i understand is normal.
As mentioned above, check your grounds and connectors. Per the service manual, "An open or short to ground in R/W or BK/W wires will also result in a Code 11". Assuming those are ok, get a voltmeter and check for a smooth, linear voltage signal to be within the specified ranges, with no spikes, as the throttle is opened and closed.
This is more of a side-question, but does this code reader unit make the check engine light flash, or does the unit itself (plugged into diags port) flash? For trouble code '56', you would have to count 56 flashes?the unit flashes 11 times...
11you would have to count 56 flashes?
The "reader" i have is not the kind with a screen as per the Harley Davidson unit. It's from American sport bike and basically consists of a four port connector that is wired with a few looped cables to initiate flash series' of the engine light. An error code from the unit i bought would come up as 6 flashes then 5 then 6 more for a cam position sensor (as an example only).
I changed and gaped the plugs (0.040)last night which did result in some more pep while riding. didn't solve the surging problem but as i stated above I have a new throttle body, tps, injectors, etc coming and an ecm spy cable to reset it all.
My idle was a bit low so i turned it up a tad. During my ride around the hood, i noticed my idle was around 2000 so when i got home i proceeded to turn it down. Due to a faulty Neutral position indicator switch, I had to ground the lead to trick the bike so that it's OK to run on the side stand. not he bike turns but wont start. while messing with that (idle adjustment) i couldn't get it to go. my friend said i may have flooded it and said to wait a hour before trying again. Fine with me, and being frustrated, a break was a good idea. I decided to chill until morning.
LIKE A FOOL!!!! i left the neutral indicator line bypassed to a ground which proceeded to drain my battery overnight. Damn now I'm stuck going by cab to get a charger and wait until tomorrow. Is it safe to use a higher amperage and jump start the bike? it;s a newer battery and i don't want to ruin it.
To hell with jumping her....
I'm still waiting for my spy cable and induction module to arrive.
The bike is now charged up properly. Turns over but wont start. I was messing with the idle cable before so I'm assuming that's why she won't start.
What happens when the idle adjustment cable is turned too far? Does it flood from the first try?
Will update asap.
Thanks all,
Ben
OK, don't think idle adjustment is the problem as it doesn't start turned up or down.
The fan runs a short high - low cycle every time i turn the engine off. Normally it only came on when the bike needed cooling. ( came on a little less often after installing right side scoop, like a quick trip up to the shops).
I get a flashing engine light as soon as i turn it on. I stopped counting after about 65... should i continue? I figure its best to see what the spy cable tells me.
Any ideas? main problem now is no start. Original problem was bogging mostly noticeable at 4k but got worse as you rode.
BTW, I ride with my RPMs q usually at or above 4500. lots of city driving and twisty back roads. 2nd gear in the city and 3-4 highway with fifth used a handful of times only for really long highway cruises.
Thanks in advance,
Ben
Just so you know, you can't blindly adjust the idle. You have to have the cable and ecmspy or tunerpro. You may find where it needs to be but it will take forever
Thanks, really. I didn't know. Ive made minor adjustments before but that was just up and down a few hundred RPMs.
SO back to waiting on the cable. Cool.
Any ideas why after changing the spark plugs it was suddenly idling at 2k?
Ben
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