V7 II Stuttering, stalling

[pete roper]

Jim, are you sure you're trying the right connector? I can't think of any other ones in that general area but........ Its got a plastic cap on it and should be clipped into a hitch on the back of the airbox. If it looks *about* right but won't clip in, (I've had this issue with one of my Lonelec cables.) take off the yellow plastic diaphragm water seal and the red plastic bit on the end of the plug and try again. No, you shouldn't have to but obviously the tolerances on the cable plugs are sometimes a bit 'How's yer father?'

Ah, just seen your last post. No, that isn't the diagnostic port! The diagnostic port has a small cap over it and should be clipped to the back of the airbox as stated above. I'll nip outside and take a pic of the one on the Griso so you know what to look for.





That other one looks like a lambda probe plug!

Pete

[Clancy]

Jim,
I don't think you've found the correct connector.

The ECU plug on a V7-II is located next to the 'new' fuse box for the ABS.
This new fuse block is mounted next to the top of the airbox.
The plug resides in to a plug holder right next to the ABS fuse and should have a cap/cover on it.

When I get home I'll take a photo for you (miserable shitty rainy winter weather today so I didn't ride to work).

Waxi,
That fault doesn't appear in my bike.
Is it in "New Faults" or "Stored Faults"?

[pete roper]

Thanks Craig. I don't have a V7-II in to examine so I'm just going from memory.

Pete

[beetle]

Jim, as Craig and Pete say, that's he wrong connector. The diagnostic connector only has two wires.   

[Jim C]

You guys are great!! It was right there in front of me! How could I have missed it?
Craig, your description was perfect! I really don't see how I could have not seen
it. Right there, for all the world to see. Thank you, thank you, thank you!

Engine mapping commences either tonight or tomorrow morning. It's been pretty
warm here (Eagle, ID US), as it got up to 100*, and is currently 95* at 6:54 MDT.
Ugh...), so, I'll probably wait until tomorrow. Thanks again...you guys are GREAT!!

Jim

(btw, the other connector had a cap too, with about six or seven horizontal holes, that
exposed the red top of the connector underneath. I just put the cap back on and shoved
it back down into the abyss from whence it came.)

Thanks again, gentlemen...

Jim

(how do I get the connector to 'snap back' into the holder, or does it just 'rest' in it?)

[pete roper]

Yeah, that rings a bell. Can't remember what that plug is for? Purging the ABS maybe but if that was the case we'd need another cable for PADS . Never mind, I'll find out.

pete

[Clancy]

(how do I get the connector to 'snap back' into the holder, or does it just 'rest' in it?)

It just rests in it.
Glad you found it 

[waxi]

Waxi, the lambda signal is still there. The hardware still functions, but the ECU ignores it. If you were to disconnect the sensor, you would get a P0135 heater error, but not a P0130, sensor malfunction.

The P0611 is odd. That's an error code usually reserved for Diesel engines.

I furrowed my brow last night for several hours in regard to the downhill stalling. I will find a solution, but it might take some time.

Ok, but this makes me confused. Why right side lambda is reading 0mV?

I have googled the fault code and found description on guzzitech: "0611 - Fuel Injector Control Module Performance -- **This was shown on a '13 V7S - turned out to be an over-charging scenario : 15V at idle**", but I don't think this is the case. Yesterday I've checked the voltage and it is charging as it should. Can this be related with GuzziDiag settings? For the bike I selected V7 Special since there is no V7 II Special option. Maybe any software differences between the bikes?

Waxi,
That fault doesn't appear in my bike.
Is it in "New Faults" or "Stored Faults"?

It's in stored faults. It has been there before remap and remains after. I tried erasing it, but it keeps coming back.

[waxi]

Mark was over in Canberra yesterday fighting with some obtuse and recalcitrant bit of medical equipment and dropped over to Bunged End to pick up The World's Heaviest Rack for the back of his Griso! We discussed this 'Downhill Idle Stall' issue and I have a few ideas but we'll need to confirm and clarify them, hopefully 'Clancy' will be able to assist with that. The MUIG3 is an interesting device........

Pete

I'll be also more than happy to help with this problem...

[beetle]

Ok, but this makes me confused. Why right side lambda is reading 0mV?

Don't worry about it. It digital gibberish. It means nothing.

I have googled the fault code and found description on guzzitech: "0611 - Fuel Injector Control Module Performance -- **This was shown on a '13 V7S - turned out to be an over-charging scenario : 15V at idle**", but I don't think this is the case. Yesterday I've checked the voltage and it is charging as it should. Can this be related with GuzziDiag settings? For the bike I selected V7 Special since there is no V7 II Special option. Maybe any software differences between the bikes?

It's in stored faults. It has been there before remap and remains after. I tried erasing it, but it keeps coming back.

GuzziDiag can't influence the DTC's (error codes) generated by the ECU.  As to why yours is generating a code that has no business being in a Guzzi eludes me. I expect it's caused by some intermittent gremlin, perhaps a bad connection. I'd be checking my grounds.

[waxi]

Don't worry about it. It digital gibberish. It means nothing.

GuzziDiag can't influence the DTC's (error codes) generated by the ECU.  As to why yours is generating a code that has no business being in a Guzzi eludes me. I expect it's caused by some intermittent gremlin, perhaps a bad connection. I'd be checking my grounds.

Most probably this is false alarm. When I was at the dealer to have map updated to 96 there was no errors on PADS. This was in March I think.

[Jim C]

Beetle,

Sorry it's taken me so long to post, but between moving,
getting the new house together, and diverse and sundry
move-related things, I just haven't had time. And then I did...
have time, that is. I backed up my lousy MAP (v. 795), and
uploaded your V7 II MAP.

Oh. My. Gosh!!!!!

What a thing of beauty!!! I've ridden my bike three days in a row
(that's the first time I've done that in, well, forever). What
a joy to ride. Holy mackerel. Starts right up, smooth takeoffs,
engine just runs, although I have a little bit of a growl around
3800 RPM for whatever reason, so I'm trying to spend a little

[beetle]

Holy mackerel. Starts right up, smooth takeoffs,
engine just runs, although I have a little bit of a growl around
3800 RPM for whatever reason, so I'm trying to spend a little

You seem to have not finished this sentence. Did you have to run and go for a ride, but couldn't wait to finish?


Seriously, tell me more about this growl.

[pete roper]

I was wondering if he'd had to go and spend a penny? :P

[Jim C]

Seriously, tell me more about this growl.

Well, it's not so much a growl as some 'roughness' at around
3800 rpm. I'm trying to ride more at that RPM, as that seems to
be the only place that it happens. I don't know why...maybe it's
just a quirk in the engine.  I'm trying to load and unload the engine
more at that RPM to try and smooth things out a bit in that area. I
doubt if it has anything to do with your awesome MAP.

Other than that, it's absolutely amazing!

Jim

[pete roper]

Might be a little bit lean in that area. Is it engine speed related or throttle position related? Does it get appreciably better or worse if you accelerate through that area harder or more gently or is it happening at a constant throttle? Roughness is usually a result of a lean condition, (Unless it's source is mechanical.) and that might be either the main map or the delta map or both. Too much spark can also cause a similar roughness but at this time of year for where you are if it was too lean it would almost certainly start detonating at the lean points if it had too much spark.

Pete

[beetle]

Jim, did you have to reset the throttle?

[twowings]

Out of curiousity, what gear are you in when this happens?  Are you in top gear and rolling on the throttle from 3800 rpm or ??

[waxi]

Well, it's not so much a growl as some 'roughness' at around
3800 rpm. I'm trying to ride more at that RPM, as that seems to
be the only place that it happens. I don't know why...maybe it's
just a quirk in the engine.  I'm trying to load and unload the engine
more at that RPM to try and smooth things out a bit in that area. I
doubt if it has anything to do with your awesome MAP.

Other than that, it's absolutely amazing!

Jim

Jim, could you write some response?

[Jim C]

Guys, quick non-update:

Pete,

Unsure of throttle position vs. engine speed, although I suspect it's engine speed related.
I need more time on the bike before I can make that determination. I haven't had a chance
to ride for a few days since I've been busy building furniture (particle board stuff in a kit)
and trying to get our new house in order.

Beetle,

When I loaded the new MAP and checked the throttle, the throttle went from 0.9 to 0.8 to 0.9 very quickly, so I figured 0.9 was probably the place to leave it at, so I made no changes.

Waxi,

As I mentioned above, I have been busy with my  new house, and haven't had the time to ride,
which is why I haven't posted. Since nothing has changed regarding the bike since the last time
I posted, I saw no reason to post a 'nothing happening with the bike' post. Sorry if that sounds
rude, but I don't know how else to say it. My new house has priority over the bike, but when I
have the opportunity, I will be happy to post the results of my 'roughness' investigation. I should
be able to do some riding this week. That's the plan, anyway. I'll have to wait and see how/if that
pans out. Regards to all...

Jim

[waxi]

Waxi,

As I mentioned above, I have been busy with my  new house, and haven't had the time to ride,
which is why I haven't posted. Since nothing has changed regarding the bike since the last time
I posted, I saw no reason to post a 'nothing happening with the bike' post. Sorry if that sounds
rude, but I don't know how else to say it. My new house has priority over the bike, but when I
have the opportunity, I will be happy to post the results of my 'roughness' investigation. I should
be able to do some riding this week. That's the plan, anyway. I'll have to wait and see how/if that
pans out. Regards to all...

Jim

Jim, no problem at all. Just thought that you forgot 
Build the new house good and strong, so that Guzzi will be safe in there.