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Lane A light

  • Jerry Hunter
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7 months 2 weeks ago - 7 months 2 weeks ago #15673 by Jerry Hunter
Jerry Hunter created the topic: Lane A light
Good afternoon. We recently sent our CTLS to the shop for the stator recall. After getting it back, the Lane A light comes on intermittently and does not go out unless we do an engine re-start. No drop in RPM, no engine roughness, etc. The BUDS Dongle gave the code as being Ignition Cylinder 1/2. I believe Lane A has a faulty sensor somewhere but there is no smoking gun. Any suggestions?
Last Edit: 7 months 2 weeks ago by Jerry Hunter.

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7 months 2 weeks ago #15674 by René Caissy
René Caissy replied the topic: Lane A light
Last summer i was flying to an island in middle of St-Laurent gulf (Canada) and lane B began to flash. I made 180 u-turn, land, and found that it was a problem with MAP probe. I really dont like to fly on the sea ! Anyway, Rotax recommanded, in my case, to tie rap all my probe. I hope it is temporary and they will modify those probe. For your lane A, maybe it is probe problem too. But we can never be shure and that is the reason why i hate those [expletive deleted!] probe :-( ... Sorry for my poor english, i come from Quebec :-)

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  • Jerry Hunter
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7 months 2 weeks ago #15675 by Jerry Hunter
Jerry Hunter replied the topic: Lane A light
Thank you sir. Do you have a picture showing how you did it?

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7 months 2 weeks ago #15676 by René Caissy
René Caissy replied the topic: Lane A light
Yes, here is picture from Pipistrel Canadian dealer.

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7 months 2 weeks ago #15677 by René Caissy
René Caissy replied the topic: Lane A light
sorry, not able to send picture. Let me try again...

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7 months 2 weeks ago #15678 by René Caissy
René Caissy replied the topic: Lane A light

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7 months 2 weeks ago #15679 by René Caissy
René Caissy replied the topic: Lane A light
Here is message from my dealer. I tie rap my sensor like he recommanded and never had problem again.


"In my opinion, there will be some kind of problem that one of the many sensors is finding.
For example- If you reduce throttle very quickly and decent rapidly one of the exhaust gas sensors will be colder than the other and the engine computer registers it as a problem with the sensor failing due to the large variance in temperatures.
There could be a fuel pressure issue, an electrical connection issue on any of the many sensors. It is very difficult to guess what is setting off the alarm without the use of the Rotax dongle.

The “Land Aircraft” alert is a general alarm for any one of many problems with any of the engine hardware/sensors that could occur.

First thing to do is Try the “ty-wrap trick" the same as the photo below. That may fix your problem just by adding some support to the wiring connection.

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7 months 2 weeks ago #15680 by RotaxOwner Admin
RotaxOwner Admin replied the topic: Lane A light
There is a new and improved clamp for the MAP sensors ( see this recent service information release: legacy.rotaxowner.com/si_tb_info/serviceinfo/si-912i-014.pdf )
The following user(s) said Thank You: René Caissy

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  • Jerry Hunter
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7 months 2 weeks ago #15681 by Jerry Hunter
Jerry Hunter replied the topic: Lane A light
Any recommendations as to where to purchase the new clamp?

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7 months 2 weeks ago #15682 by RotaxOwner Admin
RotaxOwner Admin replied the topic: Lane A light
Contact your local ROTAX distributor or service centre ( see www.rotax-owner.com/en/support-topmenu/find-service ) and ask for part number 638140. Most everyone should have them in stock by now. (I know for certain that the Canadian distributor already has them...)

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  • Jerry Hunter
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7 months 2 weeks ago #15683 by Jerry Hunter
Jerry Hunter replied the topic: Lane A light
just ordered them from CPS. Thank you very much. Hopefully it solves the issue.

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7 months 2 weeks ago #15685 by Bill Hertzel
Bill Hertzel replied the topic: Lane A light

Jerry Hunter wrote:
... The BUDS Dongle gave the code as being Ignition Cylinder 1/2. ... Any suggestions?


Why do suspect a MAP sensor?
Tug on the Map Prope connector, if it does NOT pull off in your hand, a clamp isn't going to help.

The EMS is directing you at the Cyl 1/2 Ignition on the "A" Lane.

This should be related to Ignition Coil #1 (A?) just above the #1 cylinder.
Or Ignition Coil #2 (B?) Just Above the #2 Cylinder.
Coil #1 fires the Top Plugs on Cyl #1 and #2.
Coil #2 fires the Bottom Plugs on Cyl #1 and #2.
Check for Loose or Corroded Push-On Connectors on the coils.

This might also include a spark plug problem.
If either paired plug has a problem, they will both misfire.
Checked for fouled Plugs.
Check that the plug wires have not been chaffed.

The redundant ignition will backup any plug misfire and the engine will never actually miss a beat.

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7 months 1 week ago #15694 by Roger Lee
Roger Lee replied the topic: Lane A light
Rene,

Please reframe.

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-574-1080 Home (TRY HOME FIRST)
520-349-7056 Cell

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3 weeks 11 hours ago #17434 by Peter Collins
Peter Collins replied the topic: Lane A light
I have had similar problem indication. Intermittent. The solution turned out to be: Remove the coils, pull the low-voltage connectors. Grease the males and try reconnecting. Any that are not a very firm fit, squeeze the female until they grip really firmly. We discovered two that were not tight (but they will not fall off in flight because of the orientation of the coils on the engine). When they were tightened, and the coils reinstalled, the problem went completely away and has not returned.

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