| Author | Message | ||
     Avc8130 |
So suddenly my 09 CR HATES idling when cold. It will start easily, but then the idle hunts a bit and it dies. Restart, dies. Repeat for a good while (until very warm). Once warm and riding things seem normal. Things I have tried: 1. TPS reset 2. Spark plug clean operation 3. Visual inspection of CA can/throttle bodies, everything seems proper 4. Sprayed carb and choke cleaner along throttle body boots, no reaction from motor 5. Tightened throttle body hose clamps for good measure 6. Checked battery terminals: tight Any suggestions? I was hoping to avoid the dealer so I don't lose my bike for weeks. ac | ||
| Blk09r |
Bad coolant temp sensor? Pinched IAC valve hose leading into the base of the air box? Is it throwing any codes? | ||
| Avc8130 |
I WISH it would throw a code! That would give me something to go on. Is the IAC hose the one that comes up to the right of the TBs? The one that has a tendency to rub on the throttle linkage if not pulled through sufficiently. ac | ||
| Blk09r |
Yup. That's the hose I'm talking about. It's a long shot, but you never know. | ||
| Avc8130 |
Well, I just repositioned it as I had the airbox off while inspecting everything. I couldn't test because everything is fine when warm and the bike was still warm. ac | ||
| Avc8130 |
I checked diagnostic mode and there were 2 historic codes, but I don't remember seeing a check engine light. The codes: P0192 FUEL PR SYS ERR P2220 BARO SYS ERR ac | ||
| Augustus74 |
I have no codes but, my bike will die sometimes after i start it and let it run for about 3 seconds. It will not stall though if I give it some gas right away like a carbed bike!?!? | ||
| Avc8130 |
Sounds like your bike acts like a Ducati. I am not sure where to go from here. I hate to wind up at the dealer and lose my bike in this prime riding season. ac | ||
| Avc8130 |
Called the dealer. They don't have an appointment until the 17th. Even that will not be quick so I know I won't have the bike for awhile once I drop it off. I figure I might as well keep diagnosing until I drop it off. Next steps: Clear trouble codes and try a data log to see if something goes wonky when it dies. ac | ||
| Eweaver |
Check your AFVs. Mine was doing that when the front got down to 81.0. I have a California 09 1125R. | ||
| Avc8130 |
Front 105 Rear 100 ac | ||
| Eweaver |
Well, it looks like it isn't the AFVs. | ||
| Ratbuell |
Baro sensor code could be the culprit. Baro read is what the engine baselines its map against, because that tells it how much/little air is in the atmosphere. Clear your codes, try again. I cleared a historic exhaust valve code in my Ulysses a couple weeks ago and it helped cure an idle hiccup. What flash are you running? | ||
| Avc8130 |
The baro is what hangs off the back of the air box, right? Mine is placed properly so the nozzle is down. Any ideas what diagnostics would be? Flash is 152. I plan to clear the codes this evening and hope for the best. ac | ||
| Therealassmikeg |
If all relevant electrical connections, ignition & kill switch are good, I'd swap out the main and fuel pump relays with known good ones. If the problem persists I would suspect the fuel pump and test fuel pressure and replace if necessary.. | ||
| Avc8130 |
While I agree that is a possible method of diagnostics, it just doesn't fully support the symptoms. I have ridden the bike 200+ miles since the problem has surfaced. Once warm I dont see any issue. ac | ||
| Ohsoslow |
Questions I would have is, will it run if you hold the throttle when it's cold? At what temp does it stop acting up? | ||
| Avc8130 |
I haven't been able to get it to stop stalling on its own. I fear a dead battery from all the restarts. I start riding it when COLD stops flashing and it hasn't stalled afterwards. Holding the throttle keeps it happy. It definitely hunts for idle a bit the first time it stalls after startup. After that it just cuts and dies. IAC? ac | ||
| Jdugger |
For what it's worth, when it's very cold (less than 60F) this is exactly how ALL of my bikes behave... all 3 of them. | ||
| Avc8130 |
Jdugger, Really? Mine (either of them) have never been like this in the past. I have ridden both of them below 30F with no issues like this in the past. Now it is 60F+ here and the CR is misbehaving. The R still works *knocks on wood*. ac | ||
| Jdugger |
Yea. They's cold blooded beotches. They like to be hot and ridden hard. Too much idle before coffee = stall. | ||
| Therealassmikeg |
I've seen stranger things happen. sometimes it's so simple and right there under your nose. sometimes you have to dig for them. standard practice is to rule out the basics first. fuel and ignition. swap the two relays first. you have a donor. electrical faults, relays sensors connections can be temperature related. I might even try swapping out the crank sensor. simple and quick. you'll rule out a lot or find the problem. typically faults that won't throw a cel are mechanical ie a fuel pump that stick/seizes or a crank sensor that doesn't supply the correct voltage but still gives a signal enough to allow the ecm to think it's ok. may we also assume that this did not surface till after the harness update was performed? maybe delete the harness? Internet diagnosis is tough... (Message edited by therealassmikeg on June 09, 2010) | ||
| Avc8130 |
The problem with the harness as the diagnosis: I had 300+ perfect miles AFTER harness install BEFORE these issues. I can swap the relays...they are under the seat, right? ac | ||
| Usanigel |
Check the IAC (idle air control valve) this item effect idle. If the bike rides fine "off idle" and will idle when hot then this is the place to start. It could also be the control of this item by the ecm for cold engine running. | ||
| Brumbear |
Anthony I can stop by tomorrow but you would probably be working or if you want to ride up by my house tomorrow evening with it I would be happy to try to figure it out | ||
| Avc8130 |
How do you check the IAC? That was my first thought, but I don't know any diagnostics for it. Brum, Appreciate the offer, but I do have to work tomorrow. I will be packing for track day tomorrow evening. Next chance to play with this is Saturday. ac | ||
| Therealassmikeg |
I understand your thought process and am only trying to help. Grabbing straws here.... The codes: P0192 FUEL PR SYS ERR P2220 BARO SYS ERR (correctedP2228) If I just look at these 2 faults and then the ETM I see that these sensors share the same power supply by the ecm and are spliced throughout the harness either at the same point or 2/3 separate joints.. If any one of these splices is electrically compromised (loose or corroded) you could get symptoms as you described with intermittent or no codes The shared sensors are TPS,MAP,BARO,Fuel pressure. The wire is red/white from ECM to these sensors. You could try comparing the values of these sensors between bikes (cold of course)and see if there is a dramatic difference in readings between the two. you won't even have to start the bikes, just keys on and diag mode. I doubt it's a faulty IAC. | ||
| Avc8130 |
The actual corrected code is P2229, but still Baro Sys, just the opposite direction I believe. Hmm, that is an interesting concept. Do you know which connector/pin from the ECM? Any chance it is close to 21 where the charging harness pin goes? ac | ||
| Brumbear |
Mike may be onto something make sure where they spliced in the harness they got a good connection not a shyty blue pinch splicer they always get shyted up | ||
| Avc8130 |
That is the thing. There is no "splice". It is plug and play. They do that to ensure a long-lasting retrofit. The harness is of equal quality to the rest of the electrical on the bike. ac |
