2003 1800 ECT fault


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patoy
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2003 1800 ECT fault

Post by patoy » Sun Jul 29, 2018 3:50 pm



Had the F1 fault light come on coming home the other night, a couple of miles later engine skips or misfires a couple of times, got into town and had rough idle and stalled at a light, restarted no problem. Made it home without further issue. Next day started bike and no F1 light, bike ran normally for 10-12 mile outing. Went for ride next day and 15 miles down the road F1 light comes on again, couple miles after that misfires/skips a time or two then no other noticeable problems going back home. Checked code by putting kickstand down and got 7 flashes which shows ECT fault in my manual. Haven't had any starting issues, F1 light resets itself every time I shut bike off. Any body got any ideas before I start pulling tuperware off to get to the top of the engine?



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GoldWingrGreg
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Re: 2003 1800 ECT fault

Post by GoldWingrGreg » Mon Jul 30, 2018 12:43 am

Code 7 sucks because both the shelter and cowl has to be removed for proper diagnosis. Once the cowl is off, unbolt the left radiator's 2 mount bolts and lift up and nylon tie it the handle bar for access. The stay under the rad will then need removed. That will give you access to get to the ETC's connection for diagnosis.

The sensor has 2 halves. One of its circuits sends a signal to the temp gauge, the other sends a signal to the ECM. Your diagnosis will be the ECM side. Follow the diagnosis in the Service Manual.

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patoy
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Re: 2003 1800 ECT fault

Post by patoy » Mon Jul 30, 2018 9:47 am

Not really what I wanted to hear but thanks for the info. Is it normal for the fault code to clear when the ignition is turned off?

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GoldWingrGreg
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Re: 2003 1800 ECT fault

Post by GoldWingrGreg » Mon Jul 30, 2018 10:12 am

Actually, the fault code did not clear, it is still stored in the ECM. However, the FI light lights when the fault is occurring and will stay on until the ignition switch is cycled off. If the fault is still there when the ing switch is cycled back on, then it will light again. There is a procedure in the Service Manual > Fuel System > self-diagnostic memory reset procedure (pg 5-9 in the manual I'm looking at) on how to clear the code out of the ECM. Before you clear the memory, be sure to read any others that might be present.

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Kurt J
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Re: 2003 1800 ECT fault

Post by Kurt J » Mon Jul 30, 2018 6:20 pm

Mine was doing the same thing. It was the eng kill switch on the handle bars was dirty. Flip the switch back and forth a few times and it never happen again. I took it aprt and did clean it though......might give it a try.
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GoldWingrGreg
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Re: 2003 1800 ECT fault

Post by GoldWingrGreg » Tue Jul 31, 2018 7:53 am

Kurt J wrote:
Mon Jul 30, 2018 6:20 pm
Mine was doing the same thing. It was the eng kill switch on the handle bars was dirty.
Your kill switch was causing code 7 ???

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Kurt J
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Re: 2003 1800 ECT fault

Post by Kurt J » Tue Jul 31, 2018 9:00 am

GoldWingrGreg wrote:
Tue Jul 31, 2018 7:53 am
Kurt J wrote:
Mon Jul 30, 2018 6:20 pm
Mine was doing the same thing. It was the eng kill switch on the handle bars was dirty.
Your kill switch was causing code 7 ???
I don't beleave it was Greg. It was throwing 3 different codes. Codes where saying Injectors where all inop and fuel pump. These are all killed when you flip the kill switch. I just offered this suggestion as a quick check. Some times it is something real simple knocking out some of the bigger items on the bike.
Mind over Matter:
You don't mind , it don't matter..... :D

Techdude2000
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Re: 2003 1800 ECT fault

Post by Techdude2000 » Tue Jul 31, 2018 10:16 pm

I’m guessing this won’t be an actual ECT failure. A bad ECT won’t make the bike die, it usually makes it hard to start. I’m going to guess it’s either a bad connection in the engine sensor loop or a ECM going bad.

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patoy
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Re: 2003 1800 ECT fault

Post by patoy » Wed Aug 01, 2018 12:29 am

I'm having trouble correlating the ECT fault with the missing and stalling also. I'll try the kill switch, and the ECM connections under the seat before I go further, maybe I'll get lucky. Either way it'll be a week or two until I can do anything but I'll update when I do anything.

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Re: 2003 1800 ECT fault

Post by GoldWingrGreg » Wed Aug 01, 2018 7:30 am

patoy wrote:
Wed Aug 01, 2018 12:29 am
I'm having trouble correlating the ECT fault with the missing and stalling also. I'll try the kill switch, and the ECM connections under the seat before I go further, maybe I'll get lucky. Either way it'll be a week or two until I can do anything but I'll update when I do anything.
Maybe 2 years ago, if I recall correctly, I had one that had both your symptoms (code 7 and stalling). On the one I worked on, code 7 was due to a high resistance in the ground side of the temp sensor circuit that goes to a common crimp in the harness. Unfortunately, other sensor in the PGM-FI system use the same crimp for ground; thus, causing the dying.

Hopefully Rob will walk you through the testing needed.

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patoy
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Re: 2003 1800 ECT fault

Post by patoy » Fri Aug 10, 2018 9:11 pm

Hopefully I'm not speaking too soon but it looks like I got lucky and the easy fix worked. I cleaned the kill switch, and all the other switches in the rt handlebar group. Gone about 180 miles so far and no further problems. As a bonus I got my cruise on-off switch freed up (again).

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Re: 2003 1800 ECT fault

Post by GoldWingrGreg » Fri Aug 10, 2018 9:47 pm

Be sure to update us if things change.

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patoy
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Re: 2003 1800 ECT fault

Post by patoy » Fri Aug 10, 2018 11:13 pm

Will do! Got this bike about a year and a half ago, found this forum not long after and have been reading and learning a lot from it. Have made several mods and upgrades often based on what I discovered here. My wife and I recently made a trip of over 3400 miles and had a blast, no problems at all with the bike.

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Kurt J
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Re: 2003 1800 ECT fault

Post by Kurt J » Sun Aug 12, 2018 9:51 am

patoy wrote:
Fri Aug 10, 2018 9:11 pm
Hopefully I'm not speaking too soon but it looks like I got lucky and the easy fix worked. I cleaned the kill switch, and all the other switches in the rt handlebar group. Gone about 180 miles so far and no further problems. As a bonus I got my cruise on-off switch freed up (again).
/quote]

Like I said..." some times it is a simple thing". From time to time just reach up and use the kill switch to shut the motor down. I was just shutting the bike off with the key and never used the kill switch. The contacts in the kill switch got all gummed up and lost contact and the bike would die. Now I use the kill switch from time to time to keep the contacts in the switch clean. :D


Mind over Matter:
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