| Author | Message | ||
     Sledhead |
2004 XB12s. Around 8400 miles. I've replaced plugs, and wires. The engine light does not come on when it hiccups. It seems to only do it when under a load above about 3500 rpms, when the engine is hot. I've looked for wires that were worn through, everything is tight. I'm thinking coil may be bad. Any ideas? I'm trying to avoid spending a bunch of money since the bike is for sale. | ||
| Odinbueller |
Coil failures, in my experience, are rare. Not impossible though. I believe there is a test to see if the coil is good, but I do not remember it off the top of my head. Make sure your injector & coil harnesses are tight. Also, what did you gap your plugs at? Should be 0.035" for both. Could also be timing. | ||
| Old_man |
4500 miles on my XB9S, the coil went bad, bike got the hiccups then quit running. Dealer said there was foam coming out of the coil. | ||
| Odinbueller |
Wow. I've only heard of a very few coils going bad, but none leaking foam. | ||
| Firebolteric_ma |
maybe it was a rabid(sp?) coil.  | ||
| Altima02 |
Hey old man!!! (That sounds funny) Mine did the exact same thing. I pulled the coil and found foam had come out of the bottem. Not a whole lot. It looked just like white chewed up gum, same texture, shape, size, amount. It was rock hard though. It was weird. My check engine light came on and gave me the trouble code for coil failure. | ||
| Altima02 |
A brand new coil is 40 bucks BTW. | ||
| Sledhead |
How do you check for codes? Does the engine light have to be on for codes to show up? I know on my Dodge Cummins I can cycle the key 3 times and the codes show up in the odometer window. | ||
| Sledhead |
Just as an update I just went out and cycled the key a few time to see if any codes displayed and the fuel pump got really loud. I started the bike and it (the pump) was loud for a little bit and then it quieted down. While it was running the engine light came on. I shut it off to try to duplicate the problem and started it again. This time everything was normal so i revved it to ~2000 rpm to listen to it. Sure enough I thought I heard a slight miss and put my hand in front of the exhaust. It has an intermittent miss when revved also. This time the bike was cold but the ambient air temp is about 90. That help anyone get anymore ideas. Still need to check the codes. Thanks Luke | ||
| Davo |
In order to retrieve trouble codes w/o software: Get a short piece of 18 ga. wire about 12” long with two small insulated alligator clips. The manual uses part number 72191-94 (two of them) as end connectors instead of the alligator clips. Go to the data link connector that is located on the left side just under the edge of the seat. Remove the rubber insert. There are four pins inside. Looking at the connector with the locking hasp pointed down. The pin orientation is such that pin # 1 and pin #2 are both on your left. See below: #2 #3 #1 #4 lock With the key and ignition off, connect pin #1 and pin #2 with the home made jumper. Make sure you do not touch the other pins! Then turn the key and the ignition on. Do not start the bike. The engine light should start to flash: If it flashes many times (about 10 or 11, to fast to count for me) very fast, then there are NO trouble codes. Otherwise there will be 6 quick flashes at 3 per second and this is an intermission. Then there will be a 2 second pause Then count the number of one second flashes separated by 1 second pauses and this will be your first digit. Then there will be a 2 second pause Then count the number of one second flashes separated by 1 second pauses and this will be your second digit. Then there will be a 2 second pause Start back at intermission of 6 flashes…………..and so on…….. This will continue until you turn off the ignition and the key and remove the jumper. If you remove the jumper without turning off the ignition the engine light will continue to cycle trouble codes. If you have a trouble code and then you correct the problem that created the code. The bike will automatically clear the codes after 50 start and run sessions of at least 30 seconds or more. Until then the code will remain even if the problem is fixed. Trouble code list: 11-TPS 13- O2 sensor 14-ET (engine temp) 15-air intake temp 16-battery voltage 21-exhaust actuator 23-front injector 24-front coil 25-rear coil 32-rear injector 33-fuel pump 35-tach 36-fan 44-bank angle sensor 52, 53, 54, 55- ECM failure 56-cam sync. Failure Good luck. There is a more detailed account of this procedure in the shop manual. There is also flow charts to correct all of the fault conditions. This procedure has pulled codes that my VDSTS Pro USA did not pull. The VDSTS could clear them but it could not recognize all of them. I never leave home without my jumper wire, list of the codes, small box of fuses, electrical tape, and an extra relay. I hope this helps.! |
