airhound Posted October 3 Report Share Posted October 3 Lane A Alerts. Pattern Base Leg after Lane Check it resets then somewhere around base leg turn/power reduction alerts again and again each circuit…but will reset after Lane Check. I don’t understand the Dynon Engine Fault . Quote Link to comment Share on other sites More sharing options...
Roger Lee Posted October 3 Report Share Posted October 3 Did your lane lights come on on the panel? I had a similar issue on another CTLSi and I troubleshot it for a while. I eventually disconnected the cables out at the fuse box and the cables on the ECU and applied dielectric grease to the plugs and pushed them bag in place good and tight and the issue went away. If it only shows up on the Dynon and not on the lane lights then it could just be a Dynon issue. Quote Link to comment Share on other sites More sharing options...
airhound Posted October 4 Author Report Share Posted October 4 Hey Roger, yes the Light on the panel came on in the air around the pattern on Base each time. I did a lane check each time after landing and it went off only to come on the next time around on base leg x5. Plugs were changed at annual a couple weeks ago. It’s flown 2 hrs since, noticed new noise over the IC. Not sure if it is plug related, Pasting some Google search stuff: My 912iS has 350 hours so far and Lane A light came on recently. Dongle check says Start Ignition Driver Failure. Went through the manuals and could not find ignition driver. Can anyone enlighten me? Update: Dongle check says (Ignition/Injector Driver Failure) Thanks Kiwi 0 Dislikes 0 Likes Report Page 1 of 2 Start Prev 1 2 Next End Re: Lane A light on - Solid by Jim Flock » 7 years ago When did it come on? After start-up? During cruise? Aviation Real Estate Specialist & iRMT 0 Dislikes 0 Likes Report Re: Lane A light on - Solid by Chiwei Huang » 7 years ago After start up 0 Dislikes 0 Likes Report Re: Lane A light on - Solid by Rob Seaton » 7 years ago Sounds like a crank position sensor failure, did it go away after a power cycle? (Lanes reset, off/on) 0 Dislikes 0 Likes Report Re: Lane A light on - Solid by Chiwei Huang » 7 years ago We checked all coils, high tension leads and spark plugs. Still getting the same error. Ignition/Injector Driver Failure (Communication Error) Does anyone know what's going on with the engine? 0 Dislikes 0 Likes Report Re: Lane A light on - Solid by Bill Hertzel » 7 years ago Are you sure it is not a Fuel Injector issue? Each cylinder has 2 fuel injectors. The engine starts on only one of the injectors. Once the ECM confirms a good start, it begins alternating injectors on every other cycle. If the bad injector is not the one used for starting, the fault may not appear until 3-5 seconds after the RPM's stabilize. Once the ECM identifies the problem it removes the bad injector from the mix and the engine runs perfectly normal. Just before the light comes ON, you might hear a very brief misfire/hesitation that quickly disappears. The good part of redundant systems is that the engine keeps making full power. The Bad part is that the failures produce no symptoms other than a warning light. It makes troubleshooting an otherwise perfectly good engine a challenge. The "Ignition/Driver Failure" may indicate the Fuel Injector Circuit is Failing to Drive the Injector. The "Communication Error" may indicate that the ECM/Driver does not "See" the Injector electrically. It could be a wiring/connection problem. Try re-seating the connectors on the injectors. Have a look inside the connections while you have them off to see if any look suspicious. Corrosion/Water? If all else fails... Remove one Fuel Injector Connection at a time. Start the Engine. The One that does Not produce an Additional error is the Bad One. The One that causes a cylinder to fail completely is the one Next to the Bad One! Bill Hertzel Rotax 912is North Ridgeville, OH, USA Clicking the "Thank You" is Always Appreciated by Everyone. After engine start, Lane A has 0 value for Injector 1,2,3,4 Dwell Time, we then cycle Lane A, still 0s for Dwell Time for Lane A, but when we shut down Lane B, we get numbers for Lane A's Dwell Time and the engine keeps running. When Lane B is back on, Lane A stops working again. We cleaned all 8 injector connectors and also clean the big ones under ECU before we did our last test run. Think you are right, we have to remove one connector at a time when engine is running to find out the bad one. 0 Dislikes 0 Likes Report Re: Lane A light on - Solid by Malcolm Huddart » 3 years ago We have just had a similar problem, the LANE A light would come on but initially we could toggle the Lane A switch and clear the fault, however, the interval between these failures got worse and then it wouldn't clear. There were no real engine rpm drop on performance. We use the aircraft as a Glider / Sailplane Tow plane. We spent most of today investigating the fault. The Downloaded data showed an "Ignition (Cyl 1 and 2) Driver Test Open Secondary Detected". We concentrated on Cyl 1 and 2. We pulled off the Spark Plug Caps and using a Multimeter measured the resistance between Cyl 1T and Cyl 1B it read 18k ohm (Ignition Module 8k + two plug caps of 5k each), however, Cyl 1B and Cyl 1T was Open Circuit. It was a case of eliminating the Ignition Coil module, leads and Plug Caps. In our case it turned out to be a plug cap, with an O/C resistor. We dissected the plug cap to see if the resistor had burned out of just suffered some vibration damage, it was inconclusive although there were slight burn marks on the resistor. I hope this helps others with a similar problem, because Rotax and their Agents don't seem very helpful with the 912iS Engine faults. Malc 912iS 31369_2_scan0023.pdf (You do not have access to download this file.) Thank you said by: RotaxOwner Admin 0 Dislikes 1 Like Report Re: Lane A light on - Solid by Jens Van Dorpe » 3 years ago We have the exact same problem. In flight lane A lights up. After a reset, lane A seems to work again for a few minutes. However, after a few minutes the problem comes back. The error log states "Ignition/injection driver communication error". Where to start debugging this issue? Thanks, Quote Link to comment Share on other sites More sharing options...
Duane Jefts Posted October 5 Report Share Posted October 5 Same problem here only lane B. Usually comes on when power reduced for landing. Long term problem and sometimes works OK. Many attempts at fixing but came back again this last spring. Let me know if you find a solution. Quote Link to comment Share on other sites More sharing options...
airhound Posted October 5 Author Report Share Posted October 5 Hey Duane, My next step is to find local help to down load data and send to Leaf/new name, for analysis…..Seems there’s still a common dearth of 912is savvy. Quote Link to comment Share on other sites More sharing options...
airhound Posted October 6 Author Report Share Posted October 6 Anybody please! Any idea, other than “it’s what the book calls for”, about performing 912is lane checks at less than 3600rpm? I know it’s a simple thing to do and I’m trying to avoid overthinking the process, but I believe lane checks can be a source engine faults/lane alerts if perhaps done at a wrong cadence and RPM. I think if done a certain way one can confuse the computers and cause an alert. Your thoughts and guesses are welcomed. Quote Link to comment Share on other sites More sharing options...
Roger Lee Posted October 6 Report Share Posted October 6 Hi Airhound, This would be easier and shorter by phone. You're welcome to give me a call. 520-349-7056 Quote Link to comment Share on other sites More sharing options...
airhound Posted October 8 Author Report Share Posted October 8 Thank you for the tech chat Roger, and the bonus singing expose. Bravooooo! I now have a way ahead towards resolving my CT’s lit up panel. As for the singing, you had me with your Basset Hound like rendition of Glen Campbell’s, “ Wichita Lineman.” I wanted to chime in, strictly in a Kumbaya way, but then my battery died… Quote Link to comment Share on other sites More sharing options...
Roger Lee Posted October 8 Report Share Posted October 8 LOL Quote Link to comment Share on other sites More sharing options...
shiny.ice Posted October 8 Report Share Posted October 8 5 hours ago, airhound said: I now have a way ahead towards resolving my CT’s lit up panel. Roughly what are the steps you're taking? Quote Link to comment Share on other sites More sharing options...
airhound Posted October 9 Author Report Share Posted October 9 5 hours ago, shiny.ice said: Roughly what are the steps you're taking? Roughly, Hoping the problem is an intermittent connectivity issue with either the Engine Control Unit three connectors, inside on the firewall and/or the Fuze box connectors on the engine side of the firewall. Will inject dielectric grease into the female halves of connectors to improve connections. If that doesn’t help, then hook up a dongle, monitor engine performance, down load data, then fire it off to Advanced Power Plant Solutions for interpretations and suggested fixes. Quote Link to comment Share on other sites More sharing options...
Duane Jefts Posted October 9 Report Share Posted October 9 Would like to know what you find out. Yesterday no different her, lane light on after start, lane light out after run up, lane light on when power reduced for landing. Quote Link to comment Share on other sites More sharing options...
airhound Posted Thursday at 01:14 AM Author Report Share Posted Thursday at 01:14 AM My new motto: Don’t Fix it even if it is broke, but acting like It isn’t. Yup, two 1 hour flights this week, no Lane A light. One smooth landing each, power reduced to 20% on final. I did omit jarring lane checks. Will work in a check next flight. Hopefully some misfit connector won’t throw a fault. Hey Roger, I’m feeling on the verge of a verse or two of “Do you Believe in Magic Help me out here, who sang that? Quote Link to comment Share on other sites More sharing options...
Roger Lee Posted Thursday at 01:45 AM Report Share Posted Thursday at 01:45 AM "Hey Roger, I’m feeling on the verge of a verse or two of “Do you Believe in Magic Help me out here, who sang that?" The Lovin' Spoonful Quote Link to comment Share on other sites More sharing options...
airhound Posted Thursday at 03:11 PM Author Report Share Posted Thursday at 03:11 PM Thank you Sir! Quote Link to comment Share on other sites More sharing options...
airhound Posted Saturday at 03:35 AM Author Report Share Posted Saturday at 03:35 AM Duane, 2 more flights and no Lane A Light. Lane Check Steps just as Roger and SN-ATSM-CTLS-04 15 May 2015, para 3.1 indicate seemed to eliminate my surprise warning light. Basically slower/longer key movement from: AB to B, then A, then back to B, and back to AB to give time for each computer to boot and take over the other’s load (my words). Quote Link to comment Share on other sites More sharing options...
shiny.ice Posted Saturday at 04:34 AM Report Share Posted Saturday at 04:34 AM Aha. Yeah, doing it magneto style (bouncing to both) will provoke it. Glad you were able to figure it out! Probably increases your confidence in the ECUs significantly. Quote Link to comment Share on other sites More sharing options...
Anticept Posted Saturday at 04:40 AM Report Share Posted Saturday at 04:40 AM The A both B both process is something that comes from aircraft that have individual switches for each magneto. It stuck around for turn key style ignition switches for some reason. I think it would benefit the injected model a lot more to go back to individual lane switches due to the computerization. As far as the carb CDI, i read the RPM, go to left, read drop and remember it, go to right, read rpm, go to both, calculate rise and spread. Saves a lot of key wear. Quote Link to comment Share on other sites More sharing options...
andyb Posted Saturday at 01:01 PM Report Share Posted Saturday at 01:01 PM I had the EXACT same problem on my CTLSi. Tom Baker figured it out, and I haven't had the issue since. Tom, if you'd like to weigh in, you're welcome to give info on my plane. Looking at my logbook, it may have been the replacement of the fuel regulator. Andy Quote Link to comment Share on other sites More sharing options...
Tom Baker Posted Saturday at 01:40 PM Report Share Posted Saturday at 01:40 PM 39 minutes ago, andyb said: I had the EXACT same problem on my CTLSi. Tom Baker figured it out, and I haven't had the issue since. Tom, if you'd like to weigh in, you're welcome to give info on my plane. Looking at my logbook, it may have been the replacement of the fuel regulator. Andy Yep, you had a bad regulator that was throwing warnings. This is something different. Quote Link to comment Share on other sites More sharing options...
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